What is the general solution for 5+4cos(x)=0 ?

The general solution for 5+4cos(x)=0 is No Solution for x\in\mathbb{R}

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5+4cos(x)=0

5 + 4 cos (x) = 0

No Solution for x \in R

Solution steps

5 + 4 cos (x) = 0

Move

5

to the right side

5 + 4 cos (x) = 0

Subtract

5

from both sides

5 + 4 cos (x) - 5 = 0 - 5

Simplify

4 cos (x) = - 5

4 cos (x) = - 5

Divide both sides by

4

4 cos (x) = - 5

Divide both sides by

4

\frac{4 cos ( x )}{4} = \frac{- 5}{4}

Simplify

cos (x) = - \frac{5}{4}

cos (x) = - \frac{5}{4}

- 1 \leq cos (x) \leq 1

No Solution for x \in R

csc^{2} (x) - csc (x) - 2 = 0, 0 \leq x \leq 2 π

sinh (x - 1) = 0

32 cos (x) - 6 sin (x) cos (x) = 0

tan (θ) = - \frac{6}{3}

\frac{sin ( x )}{1 - cos ( x )} = 0

What is the general solution for 5+4cos(x)=0 ?
The general solution for 5+4cos(x)=0 is No Solution for x\in\mathbb{R}