Posted by Gigi on Monday, July 23, 2012 at 10:08am.
convert to polar form:
1) x^2y^2=4 (You may leave your answer for this one as r2 =)
2) x^2+(y1)^2=1

math  Reiny, Monday, July 23, 2012 at 10:33am
we know
r^2 = x^2 + y^2
x/r = cosØ, and y/r = sinØ or x=rcosØ and y = rsinØ
x^2  y^2 = 4
r^2 cos^2 Ø  r^2 sin^2Ø = 4
r^2 (cos^2 Ø  sin^2 Ø) = 4
r^2 (cos 2Ø)=4
r^2 = 4/cos 2Ø or r^2 = 4sec 2Ø
follow the same procedure for the second one, let me know what you got

math  Gigi, Monday, July 23, 2012 at 10:53am
how did you get cos 2Ø after subtracting cos^2Øsin^2Ø?

math  Reiny, Monday, July 23, 2012 at 1:08pm
One of the basic trig identities says:
cos 2A = cos^2 A  sin^2 A
Answer This Question
Related Questions
 precalculus  convert the numbers to polar form and then divide.leave the ...
 precalculus  convert the equation y^2 = 2x x^2 into polar form. convert the ...
 Precalculus URGENT  Convert the rectangular coordinate (8,i (square root of ...
 precalculus  5x+3y=8 convert each rectangular equation to polar form Convert ...
 math  Express z = 1 + 2j in polar form then find z^3 then convert the answer to...
 Math ! Please Help !  1.Graph the polar equation r=32sin(theta) 2. Find the ...
 PRECALCULUS HELP PLEASE!  convert the polar equation to rectangular form. 1.) ...
 Maths  Polar Coordinate Systems  I've received an assignment to investigate ...
 PRECALCULUS  convert the polar equation to rectangular form. 1.) r sec(theta...
 polar form precalculus  y=x convert to polar form
More Related Questions