If f:Q→Q, g: Q→Q are two functions defined by f(x)=2x and g(x)=x+2, show that f and g are bijective maps. Verify that (gof)-1=f-1og-1

If f: $Q \to Q$ , g: $Q \to Q$ are two functions defined by f(x)=2x and g(x)=x+2, show that f and g are bijective maps. Verify that $(g o f)^{- 1} = f^{- 1} o g^{- 1}$

Matching exercise

Match the items on the right to the items on the left.

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