what does x and y equal in terms of r and theta

Question

anonymous · Answer

@johnweldon1993  can you help?

johnweldon1993 · Answer

We'll see :) do you have a question?

anonymous · Answer

Yea, what does x and y equal in terms of r and theta? lol

johnweldon1993 · Answer

Oh I though it went with an actual problem

"blonde moment" :P

anonymous · Answer

Nope just that

johnweldon1993 · Answer

Alright...well this is going into the sense of "Polar Coordinates"

Instead of say (12,5) we would instead have something along the lines of $$\large (12, 22.6^{\circ})$$

Ready to learn how? :P

anonymous · Answer

No, I just need a straight answer to the original question is that possible, that is the question my teacher told me to find out, thats all I need

johnweldon1993 · Answer

Oh! lol well alright

$$\large x = r\cos\theta$$
$$\large y = r\sin\theta$$

anonymous · Answer

Perfect! Thank you so much!

johnweldon1993 · Answer

No problem :)

anonymous · Answer

Can you tell me what the standard form of an ellipse is?

johnweldon1993 · Answer

Hmm well standard form I believe would be the

$$\large ax^2 + by^2 + cx + dy + e = 0$$

But I'm ussure because I've used

$$\large \frac{(x - h)^2}{a^2} + \frac{(y - k)^2}{b^2} = 1$$

so often..I would go with the first one though :)

anonymous · Answer

Okay, thanks! Your the bomb!

johnweldon1993 · Answer

Anytime :)