rectangular equation : x^2 - y^2 = 4

use the double angle forumla

i have no idea what to do?

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- May 25th 2009, 10:38 PMtomatoesconverting rectangular equations into polar form
rectangular equation : x^2 - y^2 = 4

use the double angle forumla

i have no idea what to do? - May 25th 2009, 11:16 PMGrandadConverting to a polar equation