Homework Help: Pre-Cal

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

Simplify the expression

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 6:17pm
1/sec = cos

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