अनुक्रम \(1,-2,4,-8,16,\ldots\) में आठवाँ पद क्या होगा?

What will be the eighth term in the sequence \(1,-2,4,-8,16,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (-128)

Step 1

Concept

Each term is multiplied by (-2), so the eighth term is ((-2)7=-128). Exam tip: track both sign and power.

Step 2

Why this answer is correct

The correct answer is D. (-128). Each term is multiplied by (-2), so the eighth term is ((-2)7=-128). Exam tip: track both sign and power.

Step 3

Exam Tip

हर बार (-2) से गुणा हो रहा है इसलिए आठवाँ पद ((-2)7=-128) है। संकेत और घात दोनों साथ देखें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(1,-2,4,-8,16,\ldots\) में आठवाँ पद क्या होगा? / What will be the eighth term in the sequence \(1,-2,4,-8,16,\ldots\)?

Correct Answer: D. (-128). Explanation: हर बार (-2) से गुणा हो रहा है इसलिए आठवाँ पद ((-2)7=-128) है। संकेत और घात दोनों साथ देखें। / Each term is multiplied by (-2), so the eighth term is ((-2)7=-128). Exam tip: track both sign and power.

Which concept should I revise for this Mathematics MCQ?

Each term is multiplied by (-2), so the eighth term is ((-2)7=-128). Exam tip: track both sign and power.

What exam hint can help solve this Mathematics question?

हर बार (-2) से गुणा हो रहा है इसलिए आठवाँ पद ((-2)7=-128) है। संकेत और घात दोनों साथ देखें।