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If f(x)=sqrt{x+3}what is the equation for f^–1(x)

User Meri
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1 Answer

3 votes
Hello,

y=√(x+3)
exchange x and y ==> x=√(y+3)

Solve for y: ==>x²=y+3==>y=x²-3=f^(-1)(x)

User Airdas
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