Question

2tanxcosx=tanx

Answer 1

\[\huge 2tanx \times cosx=tanx\]
\[\rightarrow \huge cosx= \frac{tanx}{2 \times \tan x} \]
\[\rightarrow \huge cosx= \frac{1}{2 } \]
\[\rightarrow \huge cosx= \cos 60^0 \rightarrow x = 60^0 ={\frac{2\pi}{3}}^C\]
@mjevans