Question

If sino + sino2
sino2 + sino3 = 3 then cote, + coto2 + coto3​

Answer 1

Top answer

Given cot A cot B = 2 So, cos A cos B = 2 sin A sin B ...(1)Given cos (A + B) = 35 So, cos A cos B - sin A sin B = 35 ....(2)From eq.(1) and eq.(2) sin ...