Answer:
20.08553692319
Step-by-step explanation:
We want to find the value of

Recall that
is the base of the natural logarithm.
You can find this on your scientific calculator as a secondary function;
Enter
on your scientific calculator and press the equal to sign.
You should see the result;
20.08553692319
Answer:

Step-by-step explanation:
We need to evaluate 
(5+6i)(5+6i) = (25 + 36i² + 60i) = (25 - 36 + 60i) = -11 + 60i
= 
Now we rationalize the denominator.
Now, multiplying both the numerator and denominator by (6-i)

= 
Formula used:
(a+b)² = a² + b² + 2ab
i² = -1
Step-by-step explanation:
given

put x

Answer:
okay thank you for free points