Workbook is a collection of__________in MS

If cos θ + sin θ = m, sec θ + cosec θ = n then n(m ² – 1) is equal to?

If cos²α + cos²β = 2, then the value of tan⁴α + sin⁸β is

Calculate the maximum and minimum value of (8cosA + 15sinA + 15), if 'q' lies in the first quadrant.

Simplify the following trigonometric expression: 

15 cos 25° cosec 65° − 5 cot 80° cot 10°

What is the value of (1 - sin A)/(1 + Sin A) given that tan A = 5/12 and 0° ≤ A ≤ 90°.

If 3 tan X + cot X = 2√3, then find the value of 6 tan² X + 2 cot² X.

If sin α + cos β = 2 (0˚ ≤ β < α ≤ 90˚), then sin[(2α + β)/3] =?