Mathematics
When 0° < θ < 90°, solve the following equation:
2 cos2 θ + sin θ - 2 = 0
Related Questions
Prove the following identities, where the angles involved are acute angles for which the trigonometric ratios are defined:
2(sin6 θ + cos6 θ) - 3(sin4 θ + cos4 θ) + 1 = 0.
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When 0° < θ < 90°, solve the following equation:
3 cos θ = 2 sin2 θ
When 0° < θ < 90°, solve the following equation:
sec2 θ - 2 tan θ = 0