यदि (a=4) और (r=5) है, तो \(a_4\) क्या होगा?
If (a=4) and (r=5), what is \(a_4\)?
Explanation opens after your attempt
C. (500)
Concept
\(a_4=4\cdot5^3=500\). In the (n)th term the exponent is (n-1).
Why this answer is correct
The correct answer is C. (500). \(a_4=4\cdot5^3=500\). In the (n)th term the exponent is (n-1).
Exam Tip
\(a_4=4\cdot5^3=500\)। (n)वें पद में घात (n-1) होती है।
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