Saved Bookmarks
| 1. |
If tan−1(x+3x)−tan−1(x−3x)=tan−1(6x), then the value of 5x8−4x4+7 equals |
|
Answer» If tan−1(x+3x)−tan−1(x−3x)=tan−1(6x), then the value of 5x8−4x4+7 equals |
|