InterviewSolution
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InterviewSolution
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यदि `2^(n-1)+2^(n+1)=320` है तो `n` का मान ज्ञात करें।A. 6B. 8C. 5D. 7 |
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Answer» Correct Answer - D `2^(n-1)=2^(n+1)=320` `implies2^(n-1)(1+2^(2))=320` `implies2^(n-1)(1+2^(2))=320` `implies2^(n-1)xx5=320` `implies2^(n-1)xx5=320` `implies2^(n-1)=320/5=64` `implies(2)^(n-1)=(2)^(6)` `impliesn=7` |
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