Answer:
11)
12)
13a) and
13b)
Step-by-step explanation:
11. The given equation in rectangular coordinates is
To convert to polar form, use the relation
This implies that:
In polar coordinates, is a circle with radius 4 units.
12. From the diagram;
We can see that two arrows are moving in anticlockwise direction to meet A which is moving in the clockwise direction;
13. The conjugate of the complex number: is
Part a) The given complex numbers are:
and
The conjugates of these complex numbers are:
and
Part b) The product of and is
The conjugate of the product is: