Question

Trigonometry for anyone who’s bored

Answer 1

we can find the value of x using cos.

cos=adjacent side/hypotenuse

`cos(x)=2/5\\`

Using inverse cos, we can find the value of x

`cos^-1(2/5)=66.42182152\\x=66`

(Rounded)

Explanation:

Answer 2

x= 68.19°

Explanation:

you can use inverse of cos(x)

`cos^(-1)`(
`(2)/(5)`) =68.19°

∴ x=68.19°