Saved Bookmarks
| 1. |
1 3Show that sin+sin sin 8517 |
|
Answer» Let sin^-1 (3/5) = Q sinQ =3/5 cosQ = 4/5 sin^-1 (8/17) = BsinB = 8/17cos B = 15/17 now ,Q + B = T (let )take both side sin sin (Q + B) = sinT SinQ .cosB +cosQ.sinB =sinTput value ,3/5 x 15/17 + 4/5 x 8/17 = sinT (45 + 32) /85 = sinT sinT = 77/85 T = sin^-1(77/85) Like my answer if you find it useful! |
|