Question

Convert theta = 3pi/4 to cartesian form

Answer 1

X=RCOS(THETA),Y=RSIN(THETA), X^2+Y^2=R^2

Answer 2

is an example from polar to cartesian form

Answer 3

which should give youthe hint

Answer 4

Yes but how do I convert theta.? I have do I use inverse sin or cos?

Answer 5

you can find tan theta and use inverse trig formula

Answer 6

cos 3pi/4= -1\sqrt(2), x=-R/sqrt(2)

Answer 7

dont you have value of R

Answer 8

Ah, that's what was confusing me. I not having r that is

Answer 9

if you do not have value of R, let it be as a variable

Answer 10

it is not wise to assume radius as unity

Answer 11

Thank you

Answer 12

yw