Question: ( 5 points ) Let y = f ( x ) = t a n ( - 2 x - a b - a )

(5 points) Let y=f(x)=tan(-2x-ab-a)(a,b)R=(-,)(a,b)Rabe any given real numbers. Show that function
y=f(x)=tan(-2x-ab-a)
is one-to-one from (a,b) onto R=(-,).
(This shows that (a,b)R.)
( 5 points ) Let y = f ( x ) = t a n ( - 2 x - a

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