Asked by Edward scissors hands
F(x)=radical notation 3 sqrt x-4
I know the answer is f^-1(x)=x^3+4 I just need the steps please
I know the answer is f^-1(x)=x^3+4 I just need the steps please
Answers
Answered by
oobleck
First, use parentheses!
now, switch variables
x = ∛(y - 4)
x^3 = y-4
y = x^3+4
without the parens, you have
x = ∛y - 4
x+4 = ∛y
y = (x+4)^3
now, switch variables
x = ∛(y - 4)
x^3 = y-4
y = x^3+4
without the parens, you have
x = ∛y - 4
x+4 = ∛y
y = (x+4)^3
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