Question

cos 0
(1 + cos 0) (1 - cos 0)
In a right angle triangle ABC, right angle is at B, if tan A =
$\sqrt{3}$
then find the value of
(1) sin A cos C + cos A sin C
(ii) cos A cos C -sin A sin C
a​

Answer 1

sorry I didn't know

Step-by-step explanation:

mark me as brilliant

Answer 2

Answer:

1. sinA sin(90 - C) + cos A cos(90 - C) = ${ \sin}^{2} a + \cos^{2} a = 1$
2. cos A cos C - sin A sin C = cos (A+B)