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February 28, 2015

February 28, 2015

Posted by **yumi** on Tuesday, February 26, 2013 at 1:46am.

- pre-calculus -
**Steve**, Tuesday, February 26, 2013 at 4:30ame = c/a = 1/2, so a = 2c

a^2 = c^2+b^2

4c^2 = c^2+b^2

3c^2 = b^2

c = 2, so b^2 = 12, and a^2 = 16

x^2/16 + y^2/12 = 1

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