Help Cho determined that 360 students visit the library each
day.
Based on the survey, how many of the 360 students
can he expect to read the newest magazine?
Hint: Predict for 360 students
Submit

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b