Question

when you have sin 2(x/2) is it equivalent to sinx?

Answer 1

I think yes

Answer 2

because it is still after sin not before

Answer 3

Can anyone confirm that it is yes?

Answer 4

assume that x/2 = 60 degree

then sin 2(60) = sin 120 \[\sqrt{3/2}\]

and sin 60 = the same value which is \[\sqrt{3/2}\]

Answer 5

thanks!

Answer 6

I mean \[\sqrt{3} / 2\]

Answer 7

No problem your welcome