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September 21, 2014

September 21, 2014

Posted by **Vishnu** on Tuesday, October 14, 2008 at 7:21pm.

y =sec^2x + tan^2x

- calculus -
**bobpursley**, Tuesday, October 14, 2008 at 7:24pmIf you dont know sec or tan derivatives, change them to 1/cos and sin/cos. I will be happy to check your work.

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