Question
Four positions of dice are given below. Which letter
will be opposite to D?ÂSolution
The letters A, B, C, D and E are on the adjacent faces of face C. therefore, some other letter lies opposite ‘C’. The letters B, C and E are on the adjacent faces of face D. therefore, A lies opposite D.Â
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?Â
1. q3 – 2p + ...
Simplify the following trigonometric expression:
10 cos19∘ sec19∘ − 4cot28∘ tan28...
Find the value of sin265o + sin225o + cos235o + cos255o.
...- If sin 2a = (3/2), then find the value of (sin a + cos a).
- Find the value of sin²40° + sin²50° + cos²60° + cos²30°.
- If sin (3A − 4B) = (1/2) and cos (A + B) = (√2/2), where 0° < A, B < 90°, then find the value of ‘A’.
Solve the following trigonometric expression:

- Simplify the following trigonometric expression:
9 sin 36° csc 54° − 7 tan 47° cot 43° If secθ + tanθ = 3+√10, then the value of sinθ+cosθ is
What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?
...