It is question number 20 plz help me could someone graph it and sent it I need it fast plz help me

Sketch one cycle if the cosine function y=2cos2theta

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.