Question

Please help me with this​

Answer 1

Answer:

$\frac{\pi }{3}$

Step-by-step explanation:

sin ( A + B) = sin A.cos B  + cos A. sin B

Here,

A = $\frac{5\pi }{9}$ and B = $\frac{\pi }{9}$

sin ( A + B) = 6 pi/9