Convert the polar representation of this complex number into its standard form z=4(cos150+isin150). Answer Choices:
A) (-2, 2√3)
B) (-2√3, 2)
C) (-2√3, -2)
D) (-4, 4√3)

B

Step-by-step explanation:

Using the exact values

cos150° = - cos30° = -

sin150° = sin30° =

Given

z = 4(cos150° + isin150° ) , substitute values

  = 4(- +  i )

  = - 2 + 2i , that is

(- 2, 2 ) → B

8

step-by-step explanation:

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!