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Posted by **Keith** on Wednesday, December 19, 2012 at 10:26pm.

xy=12

rsinÆŸ rcosÆŸ=12

would the answer be:

r^2=12/cosÆŸ sinÆŸ

please show steps,

Thanks

- Trigonometry -
**Reiny**, Wednesday, December 19, 2012 at 11:32pmYes, if you mean

r^2 = 12/ (sinØcosØ)

you could also change it to

r^2 = 24/sin(2Ø) , (recall sin2Ø = 2sinØcosØ )