Answer:
<u>-1=5.3</u>
<u />
<em>not sure if this is right; it should be though</em>
<em></em>
Step-by-step explanation:
2.1(0) - (1+2(0))= 5.3
-(1)=5.3
-1=5.3


Multiply both numerator and denominator of
by the complex conjugate of the denominator, -2+9i.

Multiplication can be transformed into difference of squares using the rule:
.

By definition, i² is -1. Calculate the denominator.

Multiply complex numbers 5-3i and -2+9i in the same way as you multiply binomials.

Do the multiplications in
.

Combine the real and imaginary parts in -10+45i+6i+27.

Do the additions in
.

Divide 17+51i by 85 to get
.

The real part of
is
.

Answer:
156 degree
Step-by-step explanation:
supplementary angle add up to 180 degree
180 - 24
= 156
28 + 6 = 34 and 34 - 3 = 31!!!!!!!