Question

Question?
http://prntscr.com/29ajvq

Answer 1

question asks, "which of the following statements are true ... "

so, where are the statements ? :)

Answer 2

http://prntscr.com/29alxf

Answer 3

u knw wat the amplitude of sin or cos graph is ?

Answer 4

if some graph is changing like that,
u can see that it is trapped between two values