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Popular >

inverse of f(x)=cos(3x)

Solution

inverse

f (x) = cos (3 x)

Solution

\frac{arccos ( x )}{3}

Solution steps

cos (a) = b \Rightarrow a = arccos (b)

3 x = arccos (y)

Solve for

x, 3 x = arccos (y)

\frac{arccos ( y )}{3}

Substitute

y = x

\frac{arccos ( x )}{3}

Graph

Popular Examples

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=cos(3x) ?
The inverse of f(x)=cos(3x) is (arccos(x))/3