sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + âŚâŚâŚ + sin2 83 ° = ?
...If {(tanx)/(secx)} Ă cosx = (1/2), then determine the value of âsin2xâ.
If 1 + sin 2θ = p2 and sin3 θ + cos3 θ = q then Which of the following is true ?Â
1. q3 â 2p + ...
cot 4Ë x cot 47Ë x cot 42.3Ë x cot 43Ë x cot 47.7Ë x cot 86Ë= ?
A man is standing at a point 40 meters away from a tower. The angle of elevation of the top of the tower from the point is 45°. After walking 20 meters...
What is the value of (1 - sin A)/(1 + Sin A) given that tan A = 5/12 and 0° ⤠A ⤠90°.
- cosx/(1 â sinx) + cosx/(1+ sinx) = 4, 0 o < x < 90 o , then the value of (tanx + cosecx)
cot 13Ë Â
 cot 14Ë Â ...- Find the value of sin²18° + sin²72° + cos²63° + cos²27°.