What is the general solution for cos(θ)=(-5)/4 ?

The general solution for cos(θ)=(-5)/4 is No Solution for θ\in\mathbb{R}

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cos(θ)=(-5)/4

cos (θ) = \frac{- 5}{4}

No Solution for θ \in R

Solution steps

cos (θ) = \frac{- 5}{4}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

cos (θ) = - \frac{5}{4}

- 1 \leq cos (x) \leq 1

No Solution for θ \in R

x, y = 5 cos (8 x) - y

csc (θ) = \frac{3}{2}, \frac{π}{2} < θ < \frac{3 π}{2}

tan (x) = \frac{5.1}{4.2}

tan (3 x) \cdot tan (3 0^{\circ}) = 1

3 - 6 sin (2 x) = 0

What is the general solution for cos(θ)=(-5)/4 ?
The general solution for cos(θ)=(-5)/4 is No Solution for θ\in\mathbb{R}