filmov
tv
In ∆ ACB, right-angled at C, in which AB=29,BC=21 and ∠ABC = θ ,find (i)cos²θ+sin²θ(ii)cos²θ–sin²θ.
![preview_player](https://i.ytimg.com/vi/dLRndbXFxQc/maxresdefault.jpg)
Показать описание
Thanks for watching....Please watch the video till the end so that you can understand properly...
Mathzzz Eazy
Mathzzz Eazy