Question
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
More Trigonometry Questions
- Find the value of the given trigonometric expression: (sin 25°cos 65° + cos²25°) × sin 30° + (cos 60°tan 45°) × sec 60°
- If 2cosA + secA = 2√2 , 0° < < 90°, then the value of 2(sec 4 A + cosec 4 A) is:
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- If sec A + tan A = (5/2) and sec A - tan A = (2/5), find the value of cos A.
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- Question 7
- What is the value of [(tan 5θ + tan 3θ)/4 cos 4θ (tan 5θ – tan 3θ)]?
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