यदि \(a_n=8\cdot2^{n-1}\) है, तो यह कौन-सा अनुक्रम बनाता है?
If \(a_n=8\cdot2^{n-1}\), which sequence does it form?
#sequences
#progressions
#geometric-progression
#sequence-from-rule
A \(8,10,12,14,\ldots\)
B \(2,8,32,128,\ldots\)
C \(8,16,32,64,\ldots\)
D \(16,32,64,128,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(8,16,32,64,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(8,16,32,64,\ldots\). Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (8,16,32,64) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=6\cdot3^{n-1}\) है, तो यह कौन-सा अनुक्रम बनाता है?
If \(a_n=6\cdot3^{n-1}\), which sequence does it form?
#sequences
#progressions
#geometric-progression
#sequence-from-rule
A \(3,6,9,12,\ldots\)
B \(6,9,12,15,\ldots\)
C \(6,18,54,162,\ldots\)
D \(18,54,162,486,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(6,18,54,162,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives (6,18,54,162). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(6,18,54,162,\ldots\). Putting (n=1,2,3,4) gives (6,18,54,162). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (6,18,54,162) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=4\cdot2^{n-1}\) है, तो यह कौन-सा अनुक्रम बनाता है?
If \(a_n=4\cdot2^{n-1}\), which sequence does it form?
#sequences
#progressions
#geometric-progression
#sequence-from-rule
A \(4,6,8,10,\ldots\)
B \(2,4,8,16,\ldots\)
C \(4,8,16,32,\ldots\)
D \(8,16,32,64,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(4,8,16,32,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives (4,8,16,32). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(4,8,16,32,\ldots\). Putting (n=1,2,3,4) gives (4,8,16,32). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (4,8,16,32) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
किस समांतर श्रेणी का (n)वाँ पद \(a_n=7n+3\) है?
Which arithmetic progression has (n)th term \(a_n=7n+3\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A \(3,10,17,24,\ldots\)
B \(7,14,21,28,\ldots\)
C \(10,17,24,31,\ldots\)
D \(17,24,31,38,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(10,17,24,31,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives \(10,17,24,31,\ldots\). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(10,17,24,31,\ldots\). Putting (n=1,2,3,4) gives \(10,17,24,31,\ldots\). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर \(10,17,24,31,\ldots\) मिलता है। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
किस समांतर श्रेणी का (n)वाँ पद \(a_n=5n+4\) है?
Which arithmetic progression has (n)th term \(a_n=5n+4\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A \(4,9,14,19,\ldots\)
B \(5,10,15,20,\ldots\)
C \(9,14,19,24,\ldots\)
D \(14,19,24,29,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(9,14,19,24,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives \(9,14,19,24,\ldots\). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(9,14,19,24,\ldots\). Putting (n=1,2,3,4) gives \(9,14,19,24,\ldots\). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर \(9,14,19,24,\ldots\) मिलता है। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
किस समांतर श्रेणी का (n)वाँ पद \(a_n=6n+1\) है?
Which arithmetic progression has (n)th term \(a_n=6n+1\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A \(1,7,13,19,\ldots\)
B \(6,12,18,24,\ldots\)
C \(7,13,19,25,\ldots\)
D \(13,19,25,31,\ldots\)
Explanation opens after your attempt
Correct Answer
C. \(7,13,19,25,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives \(7,13,19,25,\ldots\). Form the initial terms from the rule and match the option.
Step 2
Why this answer is correct
The correct answer is C. \(7,13,19,25,\ldots\). Putting (n=1,2,3,4) gives \(7,13,19,25,\ldots\). Form the initial terms from the rule and match the option.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर \(7,13,19,25,\ldots\) मिलता है। नियम से शुरू के पद बनाकर विकल्प मिलाएं।
Login to save your score, XP, coins and progress. Login
किस विकल्प में \(a_n=16-2n\) से बने पहले चार पद हैं?
Which option has the first four terms formed by \(a_n=16-2n\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A (14,12,10,8)
B (16,14,12,10)
C (18,16,14,12)
D (2,4,6,8)
Explanation opens after your attempt
Correct Answer
A. (14,12,10,8)
Step 1
Concept
Putting (n=1,2,3,4) gives (14,12,10,8). When forming terms from a rule, start with (n=1).
Step 2
Why this answer is correct
The correct answer is A. (14,12,10,8). Putting (n=1,2,3,4) gives (14,12,10,8). When forming terms from a rule, start with (n=1).
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (14,12,10,8) मिलते हैं। नियम से पद बनाते समय (n=1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=4n+3\) है, तो पहले चार पद कौन-से होंगे?
If \(a_n=4n+3\), what will be the first four terms?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A (7,11,15,19)
B (4,8,12,16)
C (3,7,11,15)
D (8,12,16,20)
Explanation opens after your attempt
Correct Answer
A. (7,11,15,19)
Step 1
Concept
Putting (n=1,2,3,4) gives (7,11,15,19). When forming terms from a rule, start (n) from (1).
Step 2
Why this answer is correct
The correct answer is A. (7,11,15,19). Putting (n=1,2,3,4) gives (7,11,15,19). When forming terms from a rule, start (n) from (1).
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (7,11,15,19) मिलते हैं। नियम से पद बनाते समय (n) को (1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
किस विकल्प में \(a_n=10-3n\) से बने पहले चार पद हैं?
Which option has the first four terms formed by \(a_n=10-3n\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A (7,4,1,-2)
B (10,7,4,1)
C (13,10,7,4)
D (3,6,9,12)
Explanation opens after your attempt
Correct Answer
A. (7,4,1,-2)
Step 1
Concept
Putting (n=1,2,3,4) gives (7,4,1,-2). When forming terms from a rule start with (n=1).
Step 2
Why this answer is correct
The correct answer is A. (7,4,1,-2). Putting (n=1,2,3,4) gives (7,4,1,-2). When forming terms from a rule start with (n=1).
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (7,4,1,-2) मिलते हैं। नियम से पद बनाते समय (n=1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=3n+2\) है, तो पहले चार पद कौन-से होंगे?
If \(a_n=3n+2\), what will be the first four terms?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A (5,8,11,14)
B (3,6,9,12)
C (2,5,8,11)
D (6,9,12,15)
Explanation opens after your attempt
Correct Answer
A. (5,8,11,14)
Step 1
Concept
Putting (n=1,2,3,4) gives (5,8,11,14). When forming terms from a rule start (n) from (1).
Step 2
Why this answer is correct
The correct answer is A. (5,8,11,14). Putting (n=1,2,3,4) gives (5,8,11,14). When forming terms from a rule start (n) from (1).
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (5,8,11,14) मिलते हैं। नियम से पद बनाते समय (n) को (1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
किस समानांतर श्रेढ़ी का (n)वाँ पद \(a_n=3n+8\) है?
Which arithmetic progression has (n)th term \(a_n=3n+8\)?
#sequences
#progressions
#arithmetic-progression
#sequence-from-rule
A \(8,11,14,17,\ldots\)
B \(11,14,17,20,\ldots\)
C \(3,11,19,27,\ldots\)
D \(10,13,16,19,\ldots\)
Explanation opens after your attempt
Correct Answer
B. \(11,14,17,20,\ldots\)
Step 1
Concept
Putting (n=1,2,3,4) gives (11,14,17,20). Form the first few terms from the rule and match.
Step 2
Why this answer is correct
The correct answer is B. \(11,14,17,20,\ldots\). Putting (n=1,2,3,4) gives (11,14,17,20). Form the first few terms from the rule and match.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (11,14,17,20) मिलते हैं। नियम से पहले कुछ पद बनाकर मिलाएं।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=4n^2-3n+8\) है तो पहले तीन पद कौन-से हैं?
If \(a_n=4n^2-3n+8\), what are the first three terms?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (9,18,35)
B (10,20,38)
C (8,17,34)
D (9,20,39)
Explanation opens after your attempt
Correct Answer
A. (9,18,35)
Step 1
Concept
Putting (n=1,2,3) gives (9,18,35). Calculate each term carefully in a quadratic rule.
Step 2
Why this answer is correct
The correct answer is A. (9,18,35). Putting (n=1,2,3) gives (9,18,35). Calculate each term carefully in a quadratic rule.
Step 3
Exam Tip
(n=1,2,3) रखने पर (9,18,35) मिलते हैं। द्विघात नियम में हर पद की गणना सावधानी से करें।
Login to save your score, XP, coins and progress. Login
किस विकल्प में \(a_n=3n^2-2n+6\) से बने पहले तीन पद हैं?
Which option contains the first three terms formed by \(a_n=3n^2-2n+6\)?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (7,14,27)
B (6,13,26)
C (8,15,28)
D (7,16,31)
Explanation opens after your attempt
Correct Answer
A. (7,14,27)
Step 1
Concept
Putting (n=1,2,3) gives (7,14,27). To check options, find the initial terms.
Step 2
Why this answer is correct
The correct answer is A. (7,14,27). Putting (n=1,2,3) gives (7,14,27). To check options, find the initial terms.
Step 3
Exam Tip
(n=1,2,3) रखने पर (7,14,27) मिलते हैं। विकल्प जांचने के लिए शुरुआती पद निकालें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=n^2+6n+5\) है तो पहले चार पद कौन-से हैं?
If \(a_n=n^2+6n+5\), what are the first four terms?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (12,21,32,45)
B (10,19,30,43)
C (13,22,33,46)
D (11,20,31,44)
Explanation opens after your attempt
Correct Answer
A. (12,21,32,45)
Step 1
Concept
Putting (n=1,2,3,4) gives (12,21,32,45). Start (n) from (1) when forming terms from a rule.
Step 2
Why this answer is correct
The correct answer is A. (12,21,32,45). Putting (n=1,2,3,4) gives (12,21,32,45). Start (n) from (1) when forming terms from a rule.
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (12,21,32,45) मिलते हैं। नियम से पद बनाते समय (n) को (1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=3n^2-2n+5\) है तो पहले तीन पद कौन-से हैं?
If \(a_n=3n^2-2n+5\), what are the first three terms?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (6,13,26)
B (5,12,25)
C (7,14,27)
D (6,14,26)
Explanation opens after your attempt
Correct Answer
A. (6,13,26)
Step 1
Concept
Putting (n=1,2,3) gives (6,13,26). Calculate each term carefully in a quadratic rule.
Step 2
Why this answer is correct
The correct answer is A. (6,13,26). Putting (n=1,2,3) gives (6,13,26). Calculate each term carefully in a quadratic rule.
Step 3
Exam Tip
(n=1,2,3) रखने पर (6,13,26) मिलते हैं। द्विघात नियम में हर पद की गणना सावधानी से करें।
Login to save your score, XP, coins and progress. Login
किस विकल्प में \(a_n=2n^2-n+4\) से बने पहले तीन पद हैं?
Which option contains the first three terms formed by \(a_n=2n^2-n+4\)?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (4,10,20)
B (5,10,19)
C (6,12,22)
D (7,14,25)
Explanation opens after your attempt
Correct Answer
B. (5,10,19)
Step 1
Concept
Putting (n=1,2,3) gives (5,10,19). To check options, find the initial terms.
Step 2
Why this answer is correct
The correct answer is B. (5,10,19). Putting (n=1,2,3) gives (5,10,19). To check options, find the initial terms.
Step 3
Exam Tip
(n=1,2,3) रखने पर (5,10,19) मिलते हैं। विकल्प जांचने के लिए शुरुआती पद निकालें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=n^2+5n+6\) है तो पहले चार पद कौन-से हैं?
If \(a_n=n^2+5n+6\), what are the first four terms?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (10,18,28,40)
B (11,19,29,41)
C (12,20,30,42)
D (13,21,31,43)
Explanation opens after your attempt
Correct Answer
C. (12,20,30,42)
Step 1
Concept
Putting (n=1,2,3,4) gives (12,20,30,42). When forming terms from a rule start (n) from (1).
Step 2
Why this answer is correct
The correct answer is C. (12,20,30,42). Putting (n=1,2,3,4) gives (12,20,30,42). When forming terms from a rule start (n) from (1).
Step 3
Exam Tip
(n=1,2,3,4) रखने पर (12,20,30,42) मिलते हैं। नियम से पद बनाते समय (n) को (1) से शुरू करें।
Login to save your score, XP, coins and progress. Login
यदि \(a_n=2n^2+2n+1\) है तो पहले तीन पद कौन-से हैं?
If \(a_n=2n^2+2n+1\), what are the first three terms?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (3,9,19)
B (4,12,24)
C (5,11,21)
D (5,13,25)
Explanation opens after your attempt
Correct Answer
D. (5,13,25)
Step 1
Concept
Putting (n=1,2,3) gives (5,13,25). Calculate each term carefully in a quadratic rule.
Step 2
Why this answer is correct
The correct answer is D. (5,13,25). Putting (n=1,2,3) gives (5,13,25). Calculate each term carefully in a quadratic rule.
Step 3
Exam Tip
(n=1,2,3) रखने पर (5,13,25) मिलते हैं। द्विघात नियम में हर पद की गणना सावधानी से करें।
Login to save your score, XP, coins and progress. Login
किस विकल्प में \(a_n=n^2+3n-1\) से बने पहले तीन पद हैं?
Which option contains the first three terms formed by \(a_n=n^2+3n-1\)?
#sequences
#progressions
#sequence-from-rule
#quadratic-rule
A (2,9,18)
B (3,9,17)
C (4,10,18)
D (5,11,19)
Explanation opens after your attempt
Correct Answer
B. (3,9,17)
Step 1
Concept
Putting (n=1,2,3) gives (3,9,17). To check options, quickly find the initial terms.
Step 2
Why this answer is correct
The correct answer is B. (3,9,17). Putting (n=1,2,3) gives (3,9,17). To check options, quickly find the initial terms.
Step 3
Exam Tip
(n=1,2,3) रखने पर (3,9,17) मिलते हैं। विकल्प जांचने के लिए शुरुआती पद जल्दी निकालें।
Login to save your score, XP, coins and progress. Login
