Find exact solotions.

2cosx+3tanx=0

2cosx+3sinx/cosx=0 *cosx

2cos^2x+sinx=0 ***Im stuck here any hints, I tried to use the double angel formula but its cos 2x not 2cosx! any hints!

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- Apr 20th 2009, 01:28 PMjepalSolving Trigonometric Equation
Find exact solotions.

2cosx+3tanx=0

2cosx+3sinx/cosx=0 *cosx

2cos^2x+sinx=0 ***Im stuck here any hints, I tried to use the double angel formula but its cos 2x not 2cosx! any hints! - Apr 20th 2009, 01:39 PMskeeter