Let the point (a, b) be on the Unit Circle. If (a, b) has a rotation of r degrees, then which of the following is not correct? Select all that apply. cos(-r) = -a
cos(r) = a
sin(-r) = -a
sin(r) = b​

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation:

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

i think the answer is c sorry if it's wrong