First slide

Compound angles

Question

$\cot A \cot B = 2, \cos (A + B) = 3 / 5 \Rightarrow \sin A . \sin B =$

Moderate

Solution

$\cos A \cos B = 2 \sin A \sin B$ and $\cos (A + B) = \frac{3}{5}$
$\Rightarrow \cos A \cos B - \sin A \sin B = \frac{3}{5}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App