a=1.34
b=ln-10
ln>10
Step-by-step explanation:
6. x = 16; it's a scalene triangle
7. x = 45; it's a right triangle.
Given:

Solution:
Complex formula:

Let us simplify one by one.


|3 + 4i| = 5


|3 - 4i| = 5


|-3 + 4i| = 5


|-3 - 4i| = 5
Substitute these in the given expression:


The solution of the expression is 20.