Question

Please tell it's answer
Step By Step​

Answer 1

Answer:

x =1/3 y=-2/7

Step-by-step explanation:

the answer (1+2 )

Answer 2

Answer:

In this question, we will simply put the value of x and y in LHS and RHS separately and check if LHS=RHS

LHS-    (x+y)^-1 = 1/(x+y)= 1/[1/3+(-2/7)] = 1/(1/3-2/7) = 1/[(7-3)/21] = 1/(4/21) = 21/4

RHS-    x^-1 +y^-1 = 1/x + 1/y = 1/(1/3) + 1/(-2/7) = 3 - 7/2 = (6-7)/2 = -1/2

So, LHS≠RHS