Question

please answers my previous question
show that the following 1) [(-1)^-2]^-1 -(2^-1)^2=3/4.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$(( - 1) ^{ - 2} ) ^{ - 1} - ({2}^{ - 1} ) ^{2} \\ \\ = ( - 1) ^{2} - 2 ^{ - 2} \\ \\ = 1 - \frac{1}{2 ^{2} } \\ \\ = 1 - \frac{1}{4} \\ \\ = \frac{4 - 1}{4} \\ \\ = \frac{3}{4} \\ \\ \\ formula \: \: \: - \: \: \: (x ^{m} ) ^{n} = {x}^{mn} \\ \\ x ^{ - 2} = \frac{1}{ {x}^{2} } \\ \\ ( - {x})^{2} = - x. - x = {x}^{2}$

this is true