Question

sin(x/7)sin(x/7) = 1 [ 1-cos(2x/7) ]
true or false

Answer 1

false

Answer 2

false

Answer 3

its true ...good job guys

Answer 4

ty for another wrong answer openstudy ....thats what ..4 in a row now?

Answer 5

tbh ..don't really expect medals on this one ..bye

Answer 6

no its false

Answer 7

No...its true. If it was false i would have gotten the question right now wouldn't i have.

Answer 8

That would be true if
sin(x/7)sin(x/7) = 1/2 [ 1 - cos(2x/7)]
First know what you are typing...

Answer 9

I typed it bc it said 1 ._.

Answer 10

sinx/7 sin x/7=sin^2 x/7= 1-c0s^2x/7

Answer 11

sin^2(theta) = [1 - cos(2theta)] / 2