" 9.",quad sin(-(11 pi)/(3))

sin (- (11pi)/(3))

sin (- (11pi)/(3))

sin(-11pi)/(3)

sin((-11pi)/3)

Find the values of sin (-(11pi)/(3)) .

Value of sin (-(11pi )/( 3)) is

The principal value of the arg(z) and lzl of the complex number z=1+cos((11 pi)/(9))+i sin((11 pi)/(9)) are respectively