यदि \(a_1=4\) और \(a_{n+1}=2a_n+7\) है तो \(a_4-a_2\) का मान क्या होगा?

If \(a_1=4\) and \(a_{n+1}=2a_n+7\), what is the value of \(a_4-a_2\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (70)

Step 1

Concept

The terms are (4,15,37,81), so \(a_4-a_2=66\). Exam tip: find both terms first and subtract.

Step 2

Why this answer is correct

The correct answer is C. (70). The terms are (4,15,37,81), so \(a_4-a_2=66\). Exam tip: find both terms first and subtract.

Step 3

Exam Tip

पद (4,15,37,81) हैं इसलिए \(a_4-a_2=66\) है। सही विकल्पों में (66) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=4\) और \(a_{n+1}=2a_n+7\) है तो \(a_4-a_2\) का मान क्या होगा? / If \(a_1=4\) and \(a_{n+1}=2a_n+7\), what is the value of \(a_4-a_2\)?

Correct Answer: C. (70). Explanation: पद (4,15,37,81) हैं इसलिए \(a_4-a_2=66\) है। सही विकल्पों में (66) होना चाहिए। / The terms are (4,15,37,81), so \(a_4-a_2=66\). Exam tip: find both terms first and subtract.

Which concept should I revise for this Mathematics MCQ?

The terms are (4,15,37,81), so \(a_4-a_2=66\). Exam tip: find both terms first and subtract.

What exam hint can help solve this Mathematics question?

पद (4,15,37,81) हैं इसलिए \(a_4-a_2=66\) है। सही विकल्पों में (66) होना चाहिए।