08-10-2016
Mathematics

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f(x)=√(10-3x) find the formula

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lando15345 lando15345

08-10-2016

let y=f(x)
y=sqrt(10-3x)
you want to make x the subject

square both sides
y²=10-3x
3x=10-y²
x=(10-y²)/3

now replace y with x
f^-1(x)=(10-x²)/3

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