Medium Mathematics Sequences and Progressions Class 9 Level 55

यदि \(a_n=8\cdot2^{n-1}\) है, तो यह कौन-सा अनुक्रम बनाता है?

If \(a_n=8\cdot2^{n-1}\), which sequence does it form?

Explanation opens after your attempt
Correct Answer

C. \(8,16,32,64,\ldots\)

Step 1

Concept

Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.

Step 2

Why this answer is correct

The correct answer is C. \(8,16,32,64,\ldots\). Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.

Step 3

Exam Tip

(n=1,2,3,4) रखने पर (8,16,32,64) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=8\cdot2^{n-1}\) है, तो यह कौन-सा अनुक्रम बनाता है? / If \(a_n=8\cdot2^{n-1}\), which sequence does it form?

Correct Answer: C. \(8,16,32,64,\ldots\). Explanation: (n=1,2,3,4) रखने पर (8,16,32,64) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं। / Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.

Which concept should I revise for this Mathematics MCQ?

Putting (n=1,2,3,4) gives (8,16,32,64). Form the initial terms from the rule and match the option.

What exam hint can help solve this Mathematics question?

(n=1,2,3,4) रखने पर (8,16,32,64) मिलते हैं। नियम से शुरू के पद बनाकर विकल्प मिलाएं।

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