यदि \(a_n=4n^2-3n+2\) है, तो \(a_5-a_2\) का मान क्या होगा?
If \(a_n=4n^2-3n+2\), what is the value of \(a_5-a_2\)?
Explanation opens after your attempt
B. (78)
Concept
(a_5=4\(5^2\)-3(5)+2=87) and (a_2=4\(2^2\)-3(2)+2=9). Therefore the difference is (87-9=78).
Why this answer is correct
The correct answer is B. (78). (a_5=4\(5^2\)-3(5)+2=87) and (a_2=4\(2^2\)-3(2)+2=9). Therefore the difference is (87-9=78).
Exam Tip
(a_5=4\(5^2\)-3(5)+2=87) और (a_2=4\(2^2\)-3(2)+2=9) है। इसलिए अंतर (87-9=78) है।
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