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If f(x)=2x, then f^-1(x)=
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If f(x)=2x, then f^-1(x)=

User David Griffin
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f(x)=2x\to y=2x\\\\\text{change x and y}\\\\x=2y\\\\\text{solve for y}\\\\2y=x\qquad|:2\\\\y=(x)/(2)\\\\Answer:\ f^(-1)(x)=(x)/(2)

User Fool
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