Answer: complex equations has n number of solutions, been n the equation degree. In this case:
Step-by-step explanation:
I start with a variable substitution:
Then:
Solving the quadratic equation:
Replacing for the original variable:
or
Remembering that complex numbers can be written as:
Using this:
Solving for the modulus and the angle:
The possible angle respond to:
Been "RAng" the resultant angle, "Ang" the original angle, "n" the degree of the root and "i" a value between 1 and "n"
In this case n=4 with 2 different angles: Ang = 45º and Ang = 315º
Obtaining 8 different angles, therefore 8 different solutions.
Answer:
<h3>Minimum area: 6.75 km2, maximum area: 10 km2.</h3>
Step-by-step explanation:
We are given that a rectangle has length = 2km and width = 5km.
Formula for area is :
Area = Length × Width
Plugging values in above formula for area, we get
Area = 2km × 5km
On multiplying 2 and 5, we get 10.
Therefore,
So, the maximum area possible area is .
Therefore, you can choose correct option as:
<h3>Minimum area: 6.75 km2, maximum area: 10 km2.</h3>
Answer:
y=10
Step-by-step explanation:
So listen to your teacher next time