Making angled Cos And Sin Waves Anyideas?

Im Creating A SpaceShooter and workin on paths for bullets at the moment

I have managed to Create A bullet Which Travels At Any angle and A Bullet Which Travel In a Wave From left to Right

But the Next Step is To Create A Wave bullet that travels In Any Direction 0 to 360 degrees

Try as i Might The math is lost to me

any ideas welcome cheers