Which of the following is the full form of

If sec a + tan a = 5/2, find the value of sin a. 

If 10sin²x + 6cos²x − 8 = 0, then find the value of sinx, given that 0° < x < 90°.

What is the value of (4/3) cot² (p/6) + 3 cos² (150^o) – 4 cosec² 45^o + 8 sin (p/2)?

If cot A = √3, then what will be the value of sin⁴ A?

If θ is an acute angle and sin θ + cosec θ = 2, then the value of ^sin2 θ + cosec² θ is:

If sin θ and cos θ are the root of standard Quadratic Equation , then which of the following is true ?

What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?

If sec A + tan A = (9/4) and sec A - tan A = (4/9), find the value of cos A.

If sec²x + csc²x = 10, find the value of tan²x + cot²x.

Find the value of the given trigonometric expression:

(sin 22°cos 68° + cos²22°) × sin 30° + (cos 60°tan 45°) × sec 60°