Saved Bookmarks
| 1. |
If x=2sin2 and y=2cos2 +1, then find the value of x+y |
|
Answer» Answer: Given, x=2sin θ,y=2cos 2 θ+1 To FIND: (x+y) x+y=2sin 2 θ+2cos 2 θ+1 =2(sin 2 θ+cos 2 θ)+1 .....(As sin 2 θ+cos 2 θ=1) =2+1 =3 |
|