Answer:
2.5 -1.5
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given 
1. Find the difference 

This complex number has real part
and imaginary part 
2. The modulus of complex number z is

Angle CAB = to x and angle CAB = 116°, therefore,
x = 116°
Step-by-step explanation:
B²=a²+c²
12²=4.2²+c²
144=16.4+c²
144-16.4=c²
127.6=c²
√127.6=√c²
11.3=c