Question

show that (gr ^-1 o gr) (x) = x for all x ∈ D gr

gr = x^2+5x-6
gr^-1- (x+12.25)^0.5 -2.5

Answer 1

You have to show that \(gr^{-1}(gr(x)) = x\).\[gr^{-1}(gr(x)) = gr^{-1}(x^2 + 5x - 6) \]Can you continue?

Answer 2

no i am struggling with the calculations
i replaced gr(x) in gr^-1 but cant get x as a answer