Question
A certain sum of money yields Rs. 8,334 as compound
interest for 3 years at 15% per annum. Calculate the approximate compound interest on the same amount of sum for 4 years at 10 % per annum.Solution
- Simplify the following trigonometric expression:
15 cos 27° sec 63° − 9 cot 61° tan 29° If {(tanx)/(secx)} × cosx = (1/2), then determine the value of ‘sin2x’.
The minimum value of 9 cos2 θ + 36 sec2 θ is
If cos2B = sin(1.5B + 20o), then find the measure of 'B'.
What is the value of [(tan 5θ + tan 3θ)/4 cos 4θ (tan 5θ – tan 3θ)]?
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?
1. q3 – 2p + ...
In an election involving two parties, 16% of the total votes were invalid. One of the candidates received 58% of the valid votes, and the other got 19,0...

Find the value of sin265o + sin225o + cos235o + cos255o.
...if 8 sin 2 x + 3 cos 2 x = 4 then find tan x