Question

(-x-¹y)°

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4w-¹y²


Answer:
w

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4y²


I just need to know how they got this answer.

Please help and show work please!!

Answer 1

`a^0=1\ \text{for any real number except 0}.\\\\\text{Therefore}\ (-x^(-1)y)^0=1\ \text{for}\ x\\eq0\ \text{and}\ y\\eq0.\\\\a^(-1)=(1)/(a^1)\ \text{for any real number except 0}.\\\\\text{Therefore}\ w^(-1)=(1)/(w).\\\\((-x^(-1)y)^0)/(4w^(-1)y^2)=(1)/(4y^2\cdot(1)/(w))=(1)/(4y^2)\cdot(w)/(1)=\boxed{(w)/(4y^2)}`