Question

17. If cosec 0 = 75, find the value of :
(i) 2 - sin? e - cos2 e
(ii) 2 +
1
2
sin e
2.
COS e
2.
sin e​

Answer 1

Answer:

2sin2 π/6 + cosec2 7π/6 cos2 π/3 = 3/2 Taking L.H.S ... cos2 60° = 2(sin 30°)2 + (cosec 210°)2 (cos 60°)2 Here, sin 30° = 1/2 & cos 60° = 1/.