trig fuctions...sin 3x ? (1 Viewer)

[d3adgurL]

Can anyone help me with these questionz ?

a) Write down an expression for sin 3x in terms of sin x
b) Hence find (intergral)[pie/6 --> 0] sin^3 x dx

Thanks

 

[kini mini]

Originally posted by d3adgurL
Can anyone help me with these questionz ?

a) Write down an expression for sin 3x in terms of sin x
b) Hence find (intergral)[pie/6 --> 0] sin^3 x dx

Thanks

a) sin 3x = sin (2x + x) and proceed

 

[d3adgurL]

oh
thx
heh