3 years ago

Simplify i^12. a. 1 b. −1 c. −i d. i

Mathematics

1 answer:

yaroslaw [1]3 years ago

4 0

I^12 = (i^4)^3 = 1^3 = 1

You might be interested in

I’m really confused on this one and want to make sure. I’ll make you brainlest if you add explanation. Pls and thank you :))

Darya [45]

Answer:

$\sqrt{3}$

Step-by-step explanation:

See attachment 1. This is the formula to use.

There are two numbers, so n=2. Plugging them into the formula, you get

$\sqrt[2]{6*\frac{1}{2}} \\$

Now, putting a 2 in front just means we're finding the square root, so I'll get rid of it. Then, just do the calculation.

$\sqrt{6*\frac{1}{2}}=\sqrt{\frac{6}{2}}=\sqrt{3}$

5 0

3 years ago

Read 2 more answers

Students took two parts of a test, each worth 50 points. Part A has a variance of 25, and Part B has a variance of 36. The corre

Leona [35]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

In point a:

Calculating the variance of the test grade:

$\to var(A+B)=var A + var B + 2 cov(A,B)$

$=25+36+2(0.8)\\\\=25+36+1.6\\\\=62.6$

In point b:

$\to var(A-B)=varA + var B - 2 cov(A,B)$

$=25+36-2(0.8)\\\\=25+36-1.6\\\\=59.4$

The relationship between the top 20 students is also slight, so the top 20 students are more university-like than all secondary students.

7 0

3 years ago

If x =3+2 root 2 find x - 1/x

AveGali [126]

Answer:

-2+2 $\sqrt{2}$

Step-by-step explanation:

Since we have the value of x, 3+2 $\sqrt{2}$ , we can plug that value into the new equation.

We would recieve (3+2 $\sqrt{2}$ -1)/3+2 $\sqrt{2}$

Which could simplify to -2+2 $\sqrt{2}$

8 0

2 years ago

Read 2 more answers

An large pizza has a diameter of 14 inches and is cut into 6 equal pieces . Find the area of 2 pieces , rounded to the nearest h

otez555 [7]

Answer

51.312in^2

hope this helps...

8 0

3 years ago

What does 5.94 mean in inches

andriy [413]

It means about 15 centimeters

3 0

3 years ago