Question

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Answer 1

$(4^0+4^{-1})*2^2\\\\=(1+\frac{1}{4})*4\\ \\=\frac{4+1}{4}*4\\ \\=5$

If power is zero then no matter which type of number it is its value would be 1.

And if the power of any number is negative then we have to take its reciprocal.