Question

cos250+sin110
answer ?

Answer 1

cos 250+sin 110=?
sin 110+sin 250/cos 110 +cos 250
2sin1/2 (110+250)cos 1/2 (110-250)/2 cos 1/2 (110+250)cos 1/2 (110-250)
2sin 1/25050 360 cos 1/2-140/2 cos 1/2 360 cos 1/2-(140)
2sin 180cos (-70)/2 cos 180 cos (-70)
2sin 180-180cos (-70)/2 cos (180-180)cos (-70)
2 sin cos (-70)/2 cos cos (-70)
1/2
hope this helps to u...........