Let be defined by and by

MATHEMATICS · Subjective · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Let

f:\mathbb R\to\mathbb R

be defined by

f(x)=5x-7

and

g:\mathbb R\to\mathbb R

by

g(x)=\dfrac{x+7}{5}

. Verify that

f

and

g

are inverses of each other by calculating both

g\circ f

and

f\circ g

.

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