# Trigonometry: Solving Trigonometric Equations and Proving Identities

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Manipulate trigonometric expressions, sketch graphs of trigonometric functions and solve equations.

Find the general solution of the following trigonometric equations:

1.

a) cosÎ¸cos(pi/6)+sinÎ¸sin(pi/6) =0.25

b) 2sin^2 x - 5cosx+ 1 = 0

2. Prove: cos(Î¸+ pi/4) - sin(Î¸ + pi/4) = 2cos(Î¸+ pi/4)

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Trigonometric equations are solved and identities are proven. The solution is detailed and well presented.

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