Question

If g(x) = √x and h(x) = x^3 - 1, what is g(h(4))

Answer 1

Here, given

g(x) = √x

h(x) = x³-1

For gh(4) , we have to find gh(x), so,

gh(x) = g(x³-1)

=√x³-1 [Note⇒root is both for x³ and 1]

Now,

gh(4) = √4³-1

= 3√7 or 7.9

Hope it helps!