Can someone help me pls i’ll give extra points

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

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