What is the general solution for 2cos(x)=-3 ?

The general solution for 2cos(x)=-3 is No Solution for x\in\mathbb{R}

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2cos(x)=-3

2 cos (x) = - 3

No Solution for x \in R

Solution steps

2 cos (x) = - 3

Divide both sides by

2

2 cos (x) = - 3

Divide both sides by

2

\frac{2 cos ( x )}{2} = \frac{- 3}{2}

Simplify

cos (x) = - \frac{3}{2}

cos (x) = - \frac{3}{2}

- 1 \leq cos (x) \leq 1

No Solution for x \in R

8 sec (x) - 3 tan^{2} (x) = 7

sin^{2} (6 x) + sin^{2} (3 x) = 0

\frac{1}{( 2 - sin ( x ) )} = sin (x)

6 sin (x) - 3 sin^{2} (x) = 3 - cos^{2} (x)

1 - tan^{2} (x) = a^{2} + b^{2}

What is the general solution for 2cos(x)=-3 ?
The general solution for 2cos(x)=-3 is No Solution for x\in\mathbb{R}