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(100° + 2-1 + 1-2 ) ÷ 2-1 = ……………….. A) 4 B) 3 C) -5 D) 5 |
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Answer» Correct option is (D) 5 \((100^0+2^{-1}+1^{-2})\div2^{-1}\) \(=(1+\frac12+1)\times(2^{-1})^{-1}\) \(=(2+\frac12)^2\) \(=\frac{4+1}2\times2\) \(=\frac{5}2\times2=5\) Correct option is D) 5 |
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