Hi, I have a question on double angle formulae:

Eliminate theta from the equation

x = 2 sec theta, y = cos 2 theta

The answer is x^2y = 8 - x^2

Thank you! :)

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- October 3rd 2011, 12:31 PMsakuraxkisuDouble angle formulae
Hi, I have a question on double angle formulae:

Eliminate theta from the equation

x = 2 sec theta, y = cos 2 theta

The answer is x^2y = 8 - x^2

Thank you! :) - October 3rd 2011, 02:42 PMskeeterRe: Double angle formulae
- October 5th 2011, 01:41 PMsakuraxkisuRe: Double angle formulae
Thank you so much! I feel like a bit of an idiot as that was so simple haha :)