can any one please solve this non linear equation?

can any one please solve this non linear equation?it has infinite no of solutions first 3 solutions for each a value i need

x*sin(2*a)+sin(2*x*a)=0

where x is to be find

a=(2*pi-y)/2;

y varies from 0 to 90

please help me

Answer 1

[Matt J]

Hint: the FZERO command

[vishnu]

thanks a lot can you tell how to get 3 roots at a time for each a value

[Matt J]

You can't get 3 roots at a time. However, the second input to FZERO let's you specify a search interval around the root you're looking for. You can run FZERO 3 times, once for each interval.

[vishnu]

is it possible to get complex root atleast one root for