यदि \(a_1=10\) और \(a_{n+1}=a_n+n+2\) है तो \(a_3\) क्या होगा?
If \(a_1=10\) and \(a_{n+1}=a_n+n+2\), what is \(a_3\)?
Explanation opens after your attempt
C. (17)
Concept
The terms are (10,13,17), so \(a_3=17\). Exam tip: (n+2) changes at each step.
Why this answer is correct
The correct answer is C. (17). The terms are (10,13,17), so \(a_3=17\). Exam tip: (n+2) changes at each step.
Exam Tip
पद (10,13,17) हैं इसलिए \(a_3=17\) है। (n+2) हर चरण में बदलता है।
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