Complex number will have :
- A real part
- an imaginary part
The conjugate of a complex number is simply the complex number with the imaginary part of the opposite sign
One of the usefulness of the conjugate is when you have a complex number in the denominator and you are trying to get rid of it
hope this helps
Answer: 13
Step-by-step explanation:
Answer:
28 ft
Step-by-step explanation:
The height of the triangle = 15 ft
The least required area A = 210 ft^2
We know that the area of a triangle = 1/2bh
Where
b is the base
h is the height
Substituting, we have
210 = 1/2 x b x 15
210 = 15/2 x b
420/15 = b
b = 28 ft
Applying the cosine ratio, the measure of angle C in the given image, to the nearest whole degree, is: 77°.
<h3>What is the Cosine Ratio?</h3>
The cosine ratio is given as, cos ∅ = adjacent side/hypotenuse side of a right triangle.
Using the cosine ratio, we have:
cos C = 2/9
C = cos^(-1)(2/9)
C ≈ 77 degrees.
Learn more about the cosine ratio on:
brainly.com/question/15793827
