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January 31, 2015

January 31, 2015

Posted by **Hannah** on Friday, March 5, 2010 at 5:42pm.

1/tan^2x+1

tan^2x+1 = sec^2x = 1/sec^2x

I am not sure what 1/sec^2x is equal to

- Pre-Cal -
**bobpursley**, Friday, March 5, 2010 at 6:17pm1/sec = cos

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