Question

evaluate sin(-11pi/3)

thumbs up will be given for the answer

Answer 1

sin(-11pi/3)

=sin(-4pi+pi/3)

=sin(pi/3)

=sin60degree

=root3/2

Answer 2

[tex]sin( -\frac{11\pi}{3} ) = -sin( \frac{11\pi}{3} ) = -sin( \frac{12\pi}{3}- \frac{\pi}{3} ) \\ \\ =-sin(4\pi-\frac{\pi}{3}) = -sin(- \frac{\pi}{3} ) = sin(\frac{\pi}{3}) = \frac{ \sqrt{3} }{2} [/tex]