Convert (4,3pi/2) to rectangular form
a. (-4,0)
b. (4,0)
c. (0,-4)
d. (0,4)

C

Step-by-step explanation:

To convert from polar to rectangular form, that is

(r, Θ ) → (x, y ), use the conversion

x = r cosΘ and y = r sinΘ

Here r = 4 and Θ = , thus

x = 4 × cos() = 4 × 0 = 0

y = 4 × sin( ) = 4 × - 1 = - 4

Thus rectangular form = (0, - 4 ) → C

C. (0,-4)

Step-by-step explanation: I got this right on Edmentum.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it