यदि \(a_n=5n^2-2\) है तो \(a_3+a_4\) का मान क्या होगा?

If \(a_n=5n^2-2\) then what is the value of \(a_3+a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (121)

Step 1

Concept

\(a_3=43\) and \(a_4=78\) so the sum is (121). In exams calculate the square carefully.

Step 2

Why this answer is correct

The correct answer is A. (121). \(a_3=43\) and \(a_4=78\) so the sum is (121). In exams calculate the square carefully.

Step 3

Exam Tip

\(a_3=43\) और \(a_4=78\) इसलिए योग (121) है। परीक्षा में वर्ग का मान ध्यान से निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=5n^2-2\) है तो \(a_3+a_4\) का मान क्या होगा? / If \(a_n=5n^2-2\) then what is the value of \(a_3+a_4\)?

Correct Answer: A. (121). Explanation: \(a_3=43\) और \(a_4=78\) इसलिए योग (121) है। परीक्षा में वर्ग का मान ध्यान से निकालें। / \(a_3=43\) and \(a_4=78\) so the sum is (121). In exams calculate the square carefully.

Which concept should I revise for this Mathematics MCQ?

\(a_3=43\) and \(a_4=78\) so the sum is (121). In exams calculate the square carefully.

What exam hint can help solve this Mathematics question?

\(a_3=43\) और \(a_4=78\) इसलिए योग (121) है। परीक्षा में वर्ग का मान ध्यान से निकालें।