Question
Six persons are sitting in two straight rows, facing
north. Their names are A, B, C, D, E and F. A and F are sitting at diagonally opposite ends. B is in the top row and to the immediate right of A. D is second to the left of F while C and D are not in the same row. Who is sitting at the diagonally opposite end to C?Solution
Evaluate the following:
sin 25° × cos 65° + sin 65° × cos 25°
2 × Tan 30° / (1 + Tan2 30°) equals:Â
If 7sin²θ + 3cos²θ = 4, then find the value of θ?
If x tan 60° + cos 45° = sec 45° then the value of x2 + 1 is

If Sin θ + Cos θ = √2 Cos(90 - θ ), then find the value of Cot θ ?
...If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` + `1/sec q` + `1/sec r` +`1/sec s`
...If cos² x + sin x = 5/4, then find the value of 'sin x'.
- If √3 cosec 2x = 2, then the value of x:
Simplify: sin 780° sin 480° + cos 120° sin 30°