Find the modulus, argument and the principal argument of the complex numbers: a) `z=1+cos((10pi)/9)+isin((10pi)/9)` (b) `z=-2(cos30^@+isin30^@)`

Find the modulus,argument and the principal argument of the complex numbers: a z=1+cos((10 pi)/(9))+i sin((10 pi)/(9))(b)z=-2(cos30^(@)+i sin30^(@))

Find the modulus,argument,and the principal argument of the complex numbers.(i) (tan1-i)^(2)

Find the modulus, argument, and the principal argument of the complex numbers. (i-1)/(i(1-cos((2pi)/5))+sin((2pi)/5)

Find the modulus, argument, and the principal argument of the complex numbers. (i-1)/(i(1-cos((2pi)/5))+sin((2pi)/5)

Find the modulus, argument, and the principal argument of the complex numbers. (i-1)/(i(1-cos((2pi)/5))+sin((2pi)/5)

Find the modulus,argument,and the principal argument of the complex numbers.(i-1)/(i(1-cos((2 pi)/(5)))+(sin(2 pi))/(5))

Find the principal argument of the complex number sin(6pi)/5+i(1+cos(6pi)/5)dot

Find the principal argument of the complex number sin(6pi)/5+i(1+cos(6pi)/5)dot

Find the modulus and the arguments of the complex number z = - 1 - isqrt(3)

Find the modulus and principal argument of the following complex number: cos 70^0+i cos 20^0