Trigonometryhard · Past Paper
In triangle ABC, tan A + tan B + tan C is equal to:
A0
B1
Ctan A tan B tan C
Dtan A + tan B
✓ Correct Answer: C — tan A tan B tan C
This is a standard conditional identity for the tangents of the angles of a triangle.
Share this question
More from Trigonometry
- Value of tan 22.5° is:
- What is the value of sin^6 A + cos^6 A + 3 sin^2 A cos^2 A?
- What is the value of 1 / (1 + tan^2 theta) + 1 / (1 + cot^2 theta)?
- If A + B + C = 180°, find value of cot B cot C + cot C cot A + cot A cot B.
- Simplify: sin(A-B)/cos A cos B + sin(B-C)/cos B cos C + sin(C-A)/cos C cos A.