2 years ago

Which of the following is a fifth root of the given complex number?

Mathematics

1 answer:

pshichka [43]2 years ago

4 0

Answer: D

This result is true by De Moivre's theorem.

You might be interested in

X is a discrete random variable. The table below defines a probability distribution for X.

leva [86]

0.21jbvghhjjjjhhhyyhhhhhhjjjj

3 0

3 years ago

The price, p, for different size orders of printed programs for a musical production, n, is given in the table.

Leya [2.2K]

The answer is B, hope this helps!

8 0

3 years ago

Read 2 more answers

In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposi

chubhunter [2.5K]

Answer:

The length of b is $\sqrt{2x^2(1-cos\beta)}$ .

Step by step explanation:

Given information: In ΔABC, ∠A =∠C, ∠B = ß (where ß is an acute angle), and BC = x.

Since two angles are same therefore triangle ABC is an isosceles triangle and side AB and BC are congruent.

$AB=BC=x$

According to Law of cosine

$b^2=a^2+c^2-2ac\cos B$

$b^2=x^2+x^2-2(x)(x)\cos \beta$

$b^2=2x^2-2x^2\cos \beta$

$b^2=2x^2(1-\cos \beta)$

$\sqrt{2x^2(1-cos\beta)}$

Therefore the length of b is $\sqrt{2x^2(1-cos\beta)}$ .

6 0

3 years ago

I have two marks more than you do and the sum of both our marks is equal to 14 what are our marks

svet-max [94.6K]

your marks 9 my marks 5

Step-by-step explanation:

1/2 of 14 = 7

7 + 2 = 9

14 - 9 = 5

so your marks are 9 and mine are 5

Hope this helped ..

5 0

3 years ago

If it takes 5 men 20hours to brick a house, how long will it take 2 men to do the job if they work at the same rate?

Elden [556K]

To find the contribution of each man (this is a sexist problem as women could work as well, but that’s besides the point) take 5/2 and then multiply that value by 20 and you’ll find it takes 50 hours for two men to do it.

Answer: 50 hours

4 0

4 years ago

Read 2 more answers