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\(\frac{2^{n+2}-\,2^{n+1}}{4\,\times\,2^{n-1}}\) = ..................2n+2 - 2n+1/4x2n-1 = .....................A) 3 B) – 1 C) 7 D) 1 |
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Answer» Correct option is (D) 1 \(\cfrac{2^{n+2}-2^{n+1}}{4\times2^{n-1}}=\cfrac{2^{n+1}(2-1)}{2^2\times2^{n-1}}=\cfrac{2^{n+1}}{2^{n+1}}=1\) Correct option is D) 1 |
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