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will885
May 11, 2013, 02:07 PM
Verify the following Idenity?

sec(x)(1-sin^2(x))=cos(x)

catlady23
May 11, 2013, 02:30 PM
Verify in terms of true or false?

sec(x)*(1-sin^2(x))=cos(x) - Wolfram|Alpha (http://www.wolframalpha.com/input/?i=sec(x)*(1-sin%5e2(x))%3dcos(x)&incTime=true)