If in ΔABC, ∠B = 90°, AB = 12 cm and BC = 9 cm, then the value of cos C is

If tan A = 4/3, then sinA, cosA are

Find tan 24⁰ + cos 42⁰.

In right angled triangle ABC, ∠ B = 90⁰ and ∠ C = 30^o. If AC = 10 cm, find the length of the sides AB and BC.

If sec 5A = cosec (A - 20), where 5A is an acute angle, then the value of A is

If secθ + tanθ = 3 and secθ - tanθ = n, then value of mn is

If √3 tanθ = 3 sin θ, then the value of sin²θ - cos²θ is

If 0 ≤ x ≤ 90, state the numerical value of x for which sin x^o = cos x^o.

9 tan²θ - 9 Sec²θ =

If 4 sin ² θ - 1 = 0 and θ is less than 90^o, then the value of θ is