समानांतर श्रेढ़ी \(19,23,27,31,\ldots\) का (n)वाँ पद कौन-सा है?

What is the (n)th term of the arithmetic progression \(19,23,27,31,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. \(a_n=4n+15\)

Step 1

Concept

The first term is (19) and (d=4), so (a_n=19+(n-1)4=4n+15). Remember (n-1) while forming the general term.

Step 2

Why this answer is correct

The correct answer is B. \(a_n=4n+15\). The first term is (19) and (d=4), so (a_n=19+(n-1)4=4n+15). Remember (n-1) while forming the general term.

Step 3

Exam Tip

पहला पद (19) और (d=4) है इसलिए (a_n=19+(n-1)4=4n+15)। सामान्य पद बनाते समय (n-1) का ध्यान रखें।

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Mathematics Answer, Explanation and Revision Hints

समानांतर श्रेढ़ी \(19,23,27,31,\ldots\) का (n)वाँ पद कौन-सा है? / What is the (n)th term of the arithmetic progression \(19,23,27,31,\ldots\)?

Correct Answer: B. \(a_n=4n+15\). Explanation: पहला पद (19) और (d=4) है इसलिए (a_n=19+(n-1)4=4n+15)। सामान्य पद बनाते समय (n-1) का ध्यान रखें। / The first term is (19) and (d=4), so (a_n=19+(n-1)4=4n+15). Remember (n-1) while forming the general term.

Which concept should I revise for this Mathematics MCQ?

The first term is (19) and (d=4), so (a_n=19+(n-1)4=4n+15). Remember (n-1) while forming the general term.

What exam hint can help solve this Mathematics question?

पहला पद (19) और (d=4) है इसलिए (a_n=19+(n-1)4=4n+15)। सामान्य पद बनाते समय (n-1) का ध्यान रखें।