Question

Prove that(X+y)^-1 (x^-1 + y^-1) = 1/xy answer this

Answer 1

Step-by-step explanation:

(x+y)^-1(x^-1+y^-1)

(1/x+y)(1/x+1/y)

(1/x+y)(y+x/xy)

1/xy

hence proved

Answer 2

Answer:

here is your answer

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