Question

Find angle X. Round to 2 decimal places. cos X=0.4477

Answer 1

X=63.4°

Explanation:

Given:

`\cos X=0.4477`

Find the arccosine of both sides:

`\begin{gathered} \arccos(\cos X)=\arccos(0.4477) \\ X=63.4038\degree \\ X\approx63.40\degree \end{gathered}`

The value of angle X is 63.4° (rounded to 2 decimal places).