Question

If f(x) =x+2/x-1 then prove that x= f(y)​

Answer 1

Answer:

hii here is your answer

Step-by-step explanation:

Given y = f(x) = ( x + 2 ) / ( x - 1 ) where , ( x is not equal 1 , -2 )

now , f(y) = ( y + 2 ) / ( y - 1 )

= { [ ( x + 2 ) / ( x - 1 ) + 2 ] } / [ { ( x + 2 ) / ( x - 1 ) } - 1 ]

= 3x / 3

= x

Hence , f ( y ) = x

Hence proved .....