Question
If cos2B = sin(1.5B + 20o), then find the measure of 'B'.
More Trigonometry Questions
- If cos(90° − θ) = 3/5 for an acute angle θ, find:
- If 0 ≤ θ ≤ 90°, and sin(2 θ +50°) = cos (4 θ + 16°), then what is the value of θ (in degrees)?
- Question 3
- ∆ PQR is right-angled at Q. If ∠R = 60º, then find the value of cosec P.
- Question 5
- If 10sin²x + 6cos²x − 8 = 0, then find the value of sinx, given that 0° < x < 90°.
- If sin 2a = (1/2), then find the value of (sin a + cos a).
- Simplify the following trigonometric expression: 9 sin 36° csc 54° − 7 tan 47° cot 43°
- If tan theta = 3/4 and theta is acute, then sec theta = ?
- Find the maximum value of (12sin A + 16cos A).
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