Question
sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + ……… + sin2 83 ° = ?
= 38.5 More Trigonometry Questions
- If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
- (tan 5x - tan 3x - tan 2x) = ?
- If sin(A + B) = √3/2 and cos(A + 2B) = 0, where 0° < A, B < 90°, then find the value of tan(2A).
- Calculate the maximum and minimum value of (8cosA + 15sinA + 15), if 'q' lies in the first quadrant.
- If sin A = 1/2, then what will be the value of cot² A?
- What is the simplified value of the given expression? 3(sin² 50° + sin² 40°) + 6sin 30° - (3sec 60° + cot 45°)
- cos (sec-1 x) is equal to –
- Find the value of the given expression. 2 × (sin 30° + tan 45°)
- If (3cos A - sin A) = 2 cos (90° - A), then find the value of cot A.
- If sin θ + cos θ = 1.2, find the value of sin θ. cos θ.
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