अनुक्रम \(9,19,29,39,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(9,19,29,39,\ldots\)?
Explanation opens after your attempt
Correct Answer
A. (10n-1)
Step 1
Concept
The first term is (9) and the difference is (10), so (a_n=9+(n-1)10=10n-1). Check by putting (n=1).
Step 2
Why this answer is correct
The correct answer is A. (10n-1). The first term is (9) and the difference is (10), so (a_n=9+(n-1)10=10n-1). Check by putting (n=1).
Step 3
Exam Tip
पहला पद (9) और अंतर (10) है, इसलिए (a_n=9+(n-1)10=10n-1)। पहले पद पर (n=1) रखकर जांचें।
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अनुक्रम \(8,14,20,26,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(8,14,20,26,\ldots\)?
Explanation opens after your attempt
Step 1
Concept
The first term is (8) and the common difference is (6), so (a_n=8+(n-1)6=6n+2). Check the rule by putting (n=1).
Step 2
Why this answer is correct
The correct answer is B. (6n+2). The first term is (8) and the common difference is (6), so (a_n=8+(n-1)6=6n+2). Check the rule by putting (n=1).
Step 3
Exam Tip
पहला पद (8) और समान अंतर (6) है, इसलिए (a_n=8+(n-1)6=6n+2)। पहले पद पर (n=1) रखकर नियम जांचें।
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अनुक्रम \(6,16,26,36,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(6,16,26,36,\ldots\)?
Explanation opens after your attempt
Correct Answer
A. (10n-4)
Step 1
Concept
The first term is (6) and the difference is (10), so (a_n=6+(n-1)10=10n-4). Check by putting (n=1).
Step 2
Why this answer is correct
The correct answer is A. (10n-4). The first term is (6) and the difference is (10), so (a_n=6+(n-1)10=10n-4). Check by putting (n=1).
Step 3
Exam Tip
पहला पद (6) और अंतर (10) है, इसलिए (a_n=6+(n-1)10=10n-4)। पहले पद पर (n=1) रखकर जांचें।
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अनुक्रम \(5,15,25,35,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(5,15,25,35,\ldots\)?
Explanation opens after your attempt
Correct Answer
A. (10n-5)
Step 1
Concept
The first term is (5) and the difference is (10), so (a_n=5+(n-1)10=10n-5). Check by putting (n=1).
Step 2
Why this answer is correct
The correct answer is A. (10n-5). The first term is (5) and the difference is (10), so (a_n=5+(n-1)10=10n-5). Check by putting (n=1).
Step 3
Exam Tip
पहला पद (5) और अंतर (10) है, इसलिए (a_n=5+(n-1)10=10n-5)। पहले पद पर (n=1) रखकर जांचें।
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