Simplify (X^-1 + y^-1)^-1
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Answer:
(X^-1 + y^-1)^-1=xy/(x+y)
Step-by-step explanation:
identity:- (a)^-m=1/a^m
(x^-1+y^-1)^-1
(1/x+1/y)^-1
1/{1/x+1/y}
1/{y/xy+x/xy}
xy/(x+y)
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