Question

Slove it this question​

Answer 1

a = 60°

Explanation:

Formula used:

`\red{\boxed {\bold {\tan \: \theta = \cot \: (90\degree - \theta)}}}`

`\tan \: 30 \degree = \cot \: a \\ \cot \: (90 \degree - 30 \degree) = \cot \: a \\ cot \: 60 \degree = \cot \: a \\ 60 \degree = a \\ \huge \red{ \boxed{ a = 60 \degree}}`