यदि (a=3) और (r=5) है, तो \(a_4\) क्या होगा?
If (a=3) and (r=5), what is \(a_4\)?
Explanation opens after your attempt
C. (375)
Concept
\(a_4=3\cdot5^3=375\). In the (n)th term the exponent is (n-1).
Why this answer is correct
The correct answer is C. (375). \(a_4=3\cdot5^3=375\). In the (n)th term the exponent is (n-1).
Exam Tip
\(a_4=3\cdot5^3=375\)। (n)वें पद में घात (n-1) होती है।
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