Q. For the real-valued functions g(x)=x+5x−2 and h(x)=2x−11, find the composition g∘h and specify its domain using interval notation.
Calculate composition g(h(x)): Step 1: Calculate the composition g(h(x)).g(x)=x+5x−2, h(x)=2x−11. Substitute h(x) into g(x): g(h(x))=g(2x−11)=(2x−11)+5(2x−11)−2. Simplify the expression: g(h(x))=2x−62x−13.
Determine domain of g(h(x)): Step 2: Determine the domain of g(h(x)). The domain of g(h(x))=2x−62x−13 is all real numbers except where the denominator is zero. Set the denominator equal to zero and solve for x: 2x−6=0, 2x=6, x=3. The function is undefined at x=3.
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