Evaluate : sin23 cos67 + cos23 + sin67 Share with your friends Share 0 Lovina Kansal answered this Dear student Your question is incorrect.Correct question is Evaluate sin23° cos67°+cos23° sin67°=sin23° cos(90°-23°)+cos23° sin(90°-23°)=sin23° sin23°+cos23° cos23° ∵sin(90°-x)=cosx, cos(90°-x)=sinx=sin223°+cos223°=1 Regards 2 View Full Answer
