Question

Trigonometric Equation

tanA cosA + √(3) cosA = 0

Answer 1

sin\[\frac{ sinA }{ CosA } * cosA + \sqrt{3} cosA = 0\]
\[sinA+\sqrt{3}cosA = 0\]

Answer 2

\[\frac{ 1 }{2 }\sin A+\frac{ \sqrt{3} }{2 }\cos A=0\]
\[\sin 30\sin A+\cos 30 \cos A=0 or \cos (A-30)=0=\cos 90,\cos 270\]
A-30=90,270
A=120,300 degrees.

Answer 3

I was wrong, missed a factor after dividing.