Hello : I have a problem about trigonometry ... please help me ... thanks
determine the sum of the angles A,B where 0 <= A , B <= 180 (degrees)
sinA + sinB = sqr(3/2) , cosA + cosB = sqr(1/2)
i thank you at first for your help ...
Try using the formulas for the sums of trig functions:
cosA + cosB = 2cos((A+B)/2) cos((A-B)/2)