Question
If cos 2A = 1, then find cos A
More Trigonometry Questions
- If tanθ = 3/4 and θ is acute, find sinθ and cosθ, and verify that sin²θ + cos²θ = 1.
- If cot2A = tan(A+6˚ ) , find the value of A? Given that 2A and A+6˚ are acute angles.
- What is the simplified value of the given expression? 3(sin² 30° + sin² 60°) + 6sin 45° - (3sec 60° + cot 45°)
- Simplify the following trigonometric expression: 8 cos 40° cosec 50° − 2 cot 30° cot 60°
- In a right triangle ABC, angle B = 90°. If tan A = 3/4 and the length of the hypotenuse is 25 cm, find the area of the triangle.
- What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?
- Solve the following trigonometric expression:
- If tan 12θ x tan 6θ = 1 then the value of tan 9θ is
- If cos4 p - sin4 p = , then the value of 2 cos2 p - 1 is
- Find the value of sin 240 °
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt