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 \(a_3+a_4\)?
Explanation opens after your attempt
A. (121)
Concept
\(a_3=43\) and \(a_4=78\) so the sum is (121). In exams calculate the square carefully.
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.
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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