Find the value of 3 sin 30 degree - 4 sin cube 60 degree
Prove the following:
(i) sin theta /cos(90 degree - theta)
sin theta / 1 + cos theta + 1 + cos theta / sin theta = 2 cosec theta
sec square theta - sin square theta / tan square theta = 1 + cot square theta - cos square theta
2 (sin (power 6) theta + cos (power 6) theta) - 3 (sin (power 4) theta + cos (power 4) theta) + 1 = 0
If sinA = 3/4, calculate cosA and tanA
Evaluate cos2 30Â° + sin2 45Â° - 1/3 tan2 60Â°
If angle A = angle B =45Â°, verify that sin (A + B) = sin A cos B
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