Question #4cb81

1 Answer
Oct 29, 2017

# 1-i5sqrt3.#

Explanation:

The Resultant of two complex nos. is their sum.

#:." The Resultant="6(cos300^@+isin300^@)+(-2-2isqrt3),#

#=6{cos(360^@-60^@)+isin(360^@-60^@)}-2-2isqrt3,#

#=6{cos60^@+i(-sin60^@)}-2-2isqrt3,#

#=6(1/2-isqrt3/2)-2-2isqrt3,#

#=3-i3sqrt3-2-2isqrt3,#

#:." the Resultant="1-5isqrt3.#