Question

If f(y) = 1 /2y+1 , y not equal –1/2 , then show that f[f(y)] = 2y +1/ 2y + 3 , provided y not equal –3/ 2

Answer 1

Step-by-step explanation:

f(y) = $1/(2y+1)$

f(f(Y)) = $1/(2f(y)+1)$

So, f(f(y)) = $1/((2/(2y+1)) + 1)$ = $(1/(2y+3))/(2y+1)$ = 2y+1/2y+3

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Answer 2

Answer:

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