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Popular >

inverse of-7cos(2x)

Solution

inverse

- 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 y=1.1^x inverse

y = 1. 1^{x}

range of 1+ln(x-4)range

1 + ln (x - 4)

distance (7,3),(-2,-2)distance

(7, 3), (- 2, - 2)

intercepts of f(x)=(5x)/(4x^2-x-14)intercepts

f (x) = \frac{5 x}{4 x ^{2} - x - 14}

simplify (6.7)(2.2)simplify

(6.7) (2.2)

Frequently Asked Questions (FAQ)

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