lambemily03
lambemily03
14-08-2017
Mathematics
contestada
What is the inverse of [tex] x^{2} -2?
Respuesta :
apologiabiology
apologiabiology
14-08-2017
assuming you want the inverse of f(x)=x²-2,
f(x)=x²-2
repalce f(x) with y
y=x²-2
switch x and y
x=y²-2
solve for y
x=y²-2
x+2=y²
√(x+2)=y
replace y with f⁻¹(x)
f⁻¹(x)=√(x+2)
the inverse is √(x+2)
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