यदि \(a_1=4\) और (r=-3) है, तो पहले चार पद कौन-से हैं?

If \(a_1=4\) and (r=-3), what are the first four terms?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (4,-12,36,-108)

Step 1

Concept

Multiplying by (-3) each time gives (4,-12,36,-108). A negative ratio makes the signs alternate.

Step 2

Why this answer is correct

The correct answer is B. (4,-12,36,-108). Multiplying by (-3) each time gives (4,-12,36,-108). A negative ratio makes the signs alternate.

Step 3

Exam Tip

हर बार (-3) से गुणा करने पर (4,-12,36,-108) मिलते हैं। ऋणात्मक अनुपात से चिह्न बदलते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=4\) और (r=-3) है, तो पहले चार पद कौन-से हैं? / If \(a_1=4\) and (r=-3), what are the first four terms?

Correct Answer: B. (4,-12,36,-108). Explanation: हर बार (-3) से गुणा करने पर (4,-12,36,-108) मिलते हैं। ऋणात्मक अनुपात से चिह्न बदलते हैं। / Multiplying by (-3) each time gives (4,-12,36,-108). A negative ratio makes the signs alternate.

Which concept should I revise for this Mathematics MCQ?

Multiplying by (-3) each time gives (4,-12,36,-108). A negative ratio makes the signs alternate.

What exam hint can help solve this Mathematics question?

हर बार (-3) से गुणा करने पर (4,-12,36,-108) मिलते हैं। ऋणात्मक अनुपात से चिह्न बदलते हैं।