Question

please send me the answer.......​

Answer 1

Answer:

i want some points sorry

Answer 2

Answer:

2nd 4 part is true

3rd

let 1/x-1ybe u

&1/x+1/y be v

mu-mv=a

mu+mv=b

solve any method

then

value u&v

then put the value

u&v

then find the value