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Popular >

inverse of f(x)=-7cos(2x)

Solution

inverse

f (x) = - 7 cos (2 x)

Solution

\frac{arccos ( - \frac{x}{7} )}{2}

Solution steps

Solve for

cos (2 x), y = - 7 cos (2 x)

cos (2 x) = - \frac{y}{7}

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

2 x = arccos (- \frac{y}{7})

Solve for

x, 2 x = arccos (- \frac{y}{7})

\frac{arccos ( - \frac{y}{7} )}{2}

Substitute

y = x

\frac{arccos ( - \frac{x}{7} )}{2}

Popular Examples

inverse of f(x)=2pir^2+2pir8 inverse

f (x) = 2 π r^{2} + 2 π r 8

inverse of f(x)=9x^3+8 inverse

f (x) = 9 x^{3} + 8

inverse of f(x)= 1/2-1/(2+4x)inverse

f (x) = \frac{1}{2} - \frac{1}{2 + 4 x}

inverse of sqrt(x^3+1)inverse

x^{3} + 1

inverse of (2^x)/(7+2^x)inverse

\frac{2 ^{x}}{7 + 2 ^{x}}

Frequently Asked Questions (FAQ)

What is the inverse of f(x)=-7cos(2x) ?
The inverse of f(x)=-7cos(2x) is (arccos(-x/7))/2