SOLUTION: Evaluate: {{{ 21tan^2(1432) - 21sec^2(1432) }}} Please show steps Thank you

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Question 961339: Evaluate: +21tan%5E2%281432%29+-+21sec%5E2%281432%29+
Please show steps
Thank you
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate: +21tan%5E2%281432%29+-+21sec%5E2%281432%29+
Identity: tan^2(x)-sec2x=-1
21tan^2(1432) - 21sec^2(1432)
21(tan^2(1432) -sec^2(1432)=21*(-1)=-21