Question

sin 2x=_.
a. 2 sinx cosx
b. sin^2x cos^2x
c. (1-cos2x)/2
d. 2cos^2x-1

Answer 1

Hint: Double angle formula, it's a trig identity look it up if you have to

Answer 2

oooh ok thank you I got it :)

Answer 3

Great!