A VALUE THAT SATISFIES THE EQUATION COS2X –2COS X = 0 IS (IN DEGRE...

28. - SAT II MATH EPISODE 2 PART 6 POT
SAT II MATH EPISODE 2 PART 6 POT

28. A value that satisfies the equation cos

2

x –2cos x = 0 is (in degrees)

(A) 0

(B) 30

(C) 60

(D) 90

(E) none of these