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More Trigonometry Questions
- If x = 4 cos A + 5 sin A snd y = 4 sin A – 5 cos A, then the value of x2+y2 is :
- What is the simplified value of the given expression? 3(sin² 30° + sin² 60°) + 6sin 45° - (3sec 60° + cot 45°)
- What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?
- If X = 15°, find the value of: cos²(2X) + sin²(3X) - tan²(2X)
- What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?
- If tan 4θ = cot 14θ, then find the value of cos 9θ.
- cos (sec-1 x) is equal to –
- (cos5°+sin5°)/(cos5°-sin5°) is equal to:
- Find the maximum value of (20sin A + 15cos A).
- If 6sin²x + 2cos²x − 3 = 0, then find the value of sinx, given that 0° < x < 90°.
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