Saved Bookmarks
| 1. |
(Sin theta -2sincube theta)=(2coscube theta -costheta)tan theta prove it |
| Answer» Taking RHS take cos (2cos2-1)tan But tan can be written as sin÷cos Cos(2cos2-1 ) ×sin ÷ cos Cos canclled with cos thus it is sin (2cos2-1) Now take LHS sin(1-2sin2theta)Sin (sin2+cos2-2sin2) ,1 = sin2+cos2 Sin (cos2-sin2)Sin (cos2 -1+ cos2)Sin (2cos2-1 ) Thus lhs = rhs hence proved | |