What is the sum of sin 22 degrees 30 minutes multiplied by cos 67 degrees 30 minutes five The answer to this question is 2 - root 2 and divide by 4 I don't know how to do it. The teacher gives me directions
=sin22.5*sin22.5=(1-cos45)/2=(1-√2/2)/2=(2-√2)/4
What are sin22 and sin14?
Please refer to the table
sin22=0.374606593
sin14=0.241921895
(sin22 degree + cos45 Degree * sin23 degree) / cos22 degree - sin45 Degree * sin23 degree, simplification
sin22°+cos45°sin23°=sin(45°-23°)+cos45°sin23°=sin45°cos23°-cos45°sin23°+cos45°sin23°=sin45°cos23°cos22°-sin45°sin23°=cos(45°-23°)-sin45°sin23°=cos45°cos23°+sin45°sin23°+sin45...