If the following fractions were converted to decimals, which one would result in a repeating decimal? a. 3/4 b. 3/7 c. 1/9 d. 5/11

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