Question

Change (3, 2π) into rectangular form.

Answer 1

\[x=3\cos 2\pi,y=3\sin 2\pi~ squaring ~ and~ adding,we~ get ~?\]

Answer 2

well I got (3,0) as my coordinates, but idk if thats right

Answer 3

\[x^2+y^2=3^2=9\]

Answer 4

ok, what's next?

Answer 5

(9, 1) ???

Answer 6

i have completed the solution.

Answer 7

\[x^2=3^2\cos ^22\pi \]
similarly for y^2 and then add

Answer 8

wait you mean, x^2+y^2=3^2=9 is the answer?

Answer 9

wait I don't get it

Answer 10

like for this problem Change (2, 20°) into rectangular form.
I got (1.9, 0.68)

Answer 11

was your answer correct?

Answer 12

i don't know since I haven't submitted it

Answer 13

how you did it ?

Answer 14

you are on complex numbers or changing polar to rectangular co-ordinates.

Answer 15

x=3cos 2 pi=3*-1=-3
y=3 sin 2 pi=3*0=0
rectangular coordinates are (3,0)
if you want equation in rectangular form ,that i have already given.

Answer 16

corection x=3 cos 2 pi=3*1=3

Answer 17

x=2 cos 20=1.9
y=2 sin 20=0.68