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It is sec2x, this is the same as 1/cos2x.

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โˆ™ 2010-10-10 11:34:22
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Q: Derivative of tanx
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What is the Derivative of -x plus tanx?

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Trig functions have their own special derivatives that you will have to memorize. For instance: the derivative of sinx is cosx. The derivative of cosx is -sinx The derivative of tanx is sec2x The derivative of cscx is -cscxcotx The derivative of secx is secxtanx The derivative of cotx is -csc2x


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