Question

sina=½ and cosβ=½ હોય તો α+β= ......​

Answer 1

Step-by-step explanation:

sin a = 1/2 => sin a = sin 30° => a = 30°

cos b = 1/2 => cos b = cos 60° => b = 60°

therefore a + b = 39° + 60° => 90°