यदि \(a_1=4\) और (r=-2) है, तो पहले (5) पदों का योग क्या होगा?
If \(a_1=4\) and (r=-2), what will be the sum of the first (5) terms?
Explanation opens after your attempt
D. (44)
Concept
The terms are (4,-8,16,-32,64), and their sum is (44). Add signs carefully with a negative ratio.
Why this answer is correct
The correct answer is D. (44). The terms are (4,-8,16,-32,64), and their sum is (44). Add signs carefully with a negative ratio.
Exam Tip
पद (4,-8,16,-32,64) हैं और योग (44) है। ऋणात्मक अनुपात में चिह्नों को ध्यान से जोड़ें।
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