यदि किसी गुणोत्तर श्रेढ़ी में पहला पद (4) और सार्व अनुपात (5) है, तो तीसरा पद क्या होगा?
If a geometric progression has first term (4) and common ratio (5), what is the third term?
Explanation opens after your attempt
A. (100)
Concept
\(a_3=4\cdot5^2=100\). In the (n)th term the exponent of the ratio is (n-1).
Why this answer is correct
The correct answer is A. (100). \(a_3=4\cdot5^2=100\). In the (n)th term the exponent of the ratio is (n-1).
Exam Tip
\(a_3=4\cdot5^2=100\)। (n)वें पद में अनुपात की घात (n-1) होती है।
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