Question
Find which one of the given words can be made from the
letters of the given word. ‘ SMARTLY ’Solution
‘ STAR ’ is the only possible word.
Solve the following trigonometric expression:

sin2 12˚ + sin2 14˚ + sin2 16˚ + sin2 18˚ + ……… + sin2 78˚ =?
- If sin(A + B) = 1/2 and cos(A + 2B) = √3/2, where 0° < A, B < 90°, then find the value of tan(2A).
Find the simplified value of:

If cos1.5B = sin(B + 5°), then find the measure of 'B'.
If sec(2A + B) = 2 and cos(A + B) = (1/√2) , find the value of {sec 2B + tan (A + B) } given that 0o < A, B < 90o
- If sin A = 1/2, then what will be the value of cot² A?
If sec a + tan a = 4, find the value of sin a.Â
- If cos2B = sin(1.5B - 36 o ) , then find the measure of 'B'.
The minimum value of 45 sin2 θ + 28 cos2 θ is