Question

Solve: sin2x cosx + cos 2x sin x = √3/2 Please help ! :)

Answer 1

sinacosb+sinbcosa =sin(a+b)

sin2x cosx + cos 2x sin x = √3/2
sin(2x+x)=sqrt3 /2
sin3x = sqrt 3 /2
3x= pi/3 or 2pi/3 or....
x=pi/9 or 2pi /9 or....

Answer 2

that right

Answer 3

how did get 3x = pi/3 ?

Answer 4

how did you get 3x = pi / 3 ?

Answer 5

sin30 =1/2
sin45=sqrt2 /2
sin60=sqrt 3 /2

Answer 6

ohh

Answer 7

inderstand now? :D

Answer 8

understand*

Answer 9

Ok, I understand thanks ! :)