finding composition and domains of functions

Question

Question

for real valued functions g(x)=2x-3 and h(x)=√x-1 find the composition g o h and specify its domain using interval notation

(g o h)(x)=

domain of (g o h)=

ps in h(x)=√x-1 the whole equation is under the sq root not just the x

Answer 1

Answer #1

(g o h) (x) = 2(√x -1) - 3....

x-1>= 0

x >=1...

therefore domain of (g o h) is [1, ∞).....

answered by: A'Niyah

Answer 2

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