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Popular >

inverse of y=21cos(2x)

Solution

inverse

y = 21 cos (2 x)

Solution

\frac{arccos ( \frac{x}{21} )}{2}

Solution steps

Solve for

cos (2 x), y = 21 cos (2 x)

cos (2 x) = \frac{y}{21}

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

2 x = arccos (\frac{y}{21})

Solve for

x, 2 x = arccos (\frac{y}{21})

\frac{arccos ( \frac{y}{21} )}{2}

Substitute

y = x

\frac{arccos ( \frac{x}{21} )}{2}

Popular Examples

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f (x) = 19 x - 46

inverse of y=ln(3x+1)-5 inverse

y = ln (3 x + 1) - 5

inverse of f(x)=(5x-14)/(x-3)inverse

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inverse of y=2sqrt(1+3x)-1 inverse

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inverse of 23-230 inverse

23 - 230

Frequently Asked Questions (FAQ)

What is the inverse of y=21cos(2x) ?
The inverse of y=21cos(2x) is (arccos(x/(21)))/2