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Sec^4xtan^2x=(tan^2x+tan^4x)sec^2x
shortie0612
Feb 15, 2010, 08:30 PM
I need to solve this trig proof
galactus
Feb 16, 2010, 07:16 AM
You can prove one is equal to the other by setting all terms to sec.
Use tan^{2}(x)=sec^{2}(x)-1