Question

If a= -2 b=-1 then a^-b - b^a​

Answer 1

Answer:

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Step-by-step explanation:

$Given \ that \ a=-2 \ and \ b=-1\\\\We \ have \ to \ find \ a^{-b}- b^{a} \\\\ a^{-b}- b^{a}=-2^{-(-1)}-(-1)^{-2}\\ \\a^{-b}- b^{a}=-2^{1}-(-1) \\\\a^{-b}- b^{a}=-2+1\\\\a^{-b}- b^{a}=-1$

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