Question

Give the values of angles for $\cos$ function.

Answer 1

Step 1: $\cos$ function explanation

$\cos$ is the cosine function of a right triangle in trigonometry.

$\cos$ function is the ratio of the adjacent side and hypotenuse.

If we have a right triangle and $\alpha$ is the angle between the adjacent side $b$ and hypotenuse $h$, then as per the $\cos$ function, we can write

$\cos \alpha =\frac{b}{h}$

Step 2: Values of angles for $\cos$

The value of $\cos$ is derived for different values of angles such as $0°,30°,45°,60°,90°$ and more are given are:

Cos Degrees	Values
$\cos 0°$	$1$
$\cos 30°$	$\frac{\sqrt{3}}{2}$
$\cos 45°$	$\frac{1}{\sqrt{2}}$
$\cos 60°$	$\frac{1}{2}$
$\cos 90°$	$0$
$\cos 120°$	$-\frac{1}{\sqrt{2}}$
$\cos 150°$	$-\frac{\sqrt{3}}{2}$
$\cos 180°$	$-1$
$\cos 270°$	$0$
$\cos 360°$	$1$

Hence, the values of angles for $\cos$ function have been listed above.