1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dsp73
2 years ago
14

PLEASE PLEASE HELP!!!!

Mathematics
1 answer:
Usimov [2.4K]2 years ago
6 0

Answer:

B

Step-by-step explanation:

\cos( \alpha )  +  i\sin( \alpha )  =  {e}^{i (\alpha   + 2\pi)}

z = 3(cos π/2 + i sin π/2) =→

3 {e}^{i \frac{\pi}{2} }

z⁷ =

{3}^{7}  {e}^{i \frac{7\pi}{2} }  =   {3}^{7}  {e}^{i \frac{(7 - 4)\pi}{2} }  =  {3}^{7}  {e}^{i \frac{3\pi}{2} }  =  {3}^{7} ( \cos( \frac{3\pi}{2} )  + i \sin( \frac{3\pi}{2} ) ) = 2187( \cos( \frac{3\pi}{2} )  + i \sin( \frac{3\pi}{2} ) )

You might be interested in
What is a differential equation
pickupchik [31]
A differential equation is one that contains the derivative of a function.  For example f(x) + 3 = 4f'(x) - 2.  Usually you will be given one of the functions and initial conditions if you have to solve.
5 0
3 years ago
Which statement is true about the polynomial 3x?y2 - 5xy2 - 3x²y2 + 2x2 after it has been fully simplified?
Sladkaya [172]
4 terms, degree of 2

The terms is the amount of “numbers” you have, which is 4
The degree is the highest power, which is x^2
6 0
3 years ago
Read 2 more answers
Answer plzzzz I need it ok
Mariana [72]

Answer:

There are 26 different possible outcomes. the probability of the computer choosing the first letter of your name is 1 out of 26.

4 0
3 years ago
Help ppppppppppppllllllllllllllllsssssssss
iVinArrow [24]

Answer:

The correct option is D ....

Step-by-step explanation:

Angle is ending at the point = (-3, -4)

Signs of both x and y are negative therefore it is in the third quadrant.

To find the the tangent of an angle we have to find  the ratio of the length of the opposite side to the length of the adjacent side.

In this question the opposite side of the angle is of 4 units and the adjacent side of the angle is 3 units.

tanθ = y/x

tanθ = -4/-3

tanθ = 4/3

Thus the correct option is D ....

5 0
3 years ago
Round 34,527 to the nearest ten-thousand
photoshop1234 [79]

Answer:

If you round it to the nearest ten-thousand, your answer would be 30,000.

6 0
3 years ago
Read 2 more answers
Other questions:
  • −6.6(−4.3)<br> Find answer plz
    11·1 answer
  • Ellie earned $18.40 by babysitting. She worked 2.3 hours. How much money was Ellie paid per hour?
    15·2 answers
  • Three consecutive integers have a sum of 132 . find the integers.
    8·1 answer
  • I dont know how to solve this can you help me​
    13·1 answer
  • Can someone plz help me
    13·1 answer
  • Help immediately!!!!! What is the average rate
    15·2 answers
  • Find the volume of this cone.
    11·1 answer
  • Translate this phrase into an algebraic expression. 20 more than twice a number Use the variable n to represent the unknown numb
    5·1 answer
  • If f(x) = -x^2 +x-5, what is f(-3)
    13·1 answer
  • You recently opened your checking account with reallybigbank on August 1 using $100.00
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!