यदि \(a_n=n^2+n\) है, तो \(a_7\) का मान क्या होगा?
If \(a_n=n^2+n\), what is the value of \(a_7\)?
Explanation opens after your attempt
C. (56)
Concept
\(a_7=7^2+7=56\). Do the square and addition in order.
Why this answer is correct
The correct answer is C. (56). \(a_7=7^2+7=56\). Do the square and addition in order.
Exam Tip
\(a_7=7^2+7=56\)। वर्ग और जोड़ को क्रम से करें।
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