Lesson goal: Take a derivative

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Codebymath knows how to differentiate an expression. We have a function called diff that knows how to differentiate most polynomial-type expressions. This means figuring out, for example, that $\frac{d}{dx}2x^2=4x$ and $\frac{d}{dx}\cos^2(x)=-2cos(x)sin(x)$. This can help you calculus students check your work.

The diff function here is use a lot like the algebra function from this past lesson.

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Now you try. Try factoring just about any expression you can find in your algebra book, and see what you get.

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This example will find the derivative of $2x^2$. You might also try differentiating:
  • $2x^2+10x-7$ with respect to $x$.
  • $\cos^2(2x)$ with respect to $x$.
  • Codebymath knows these functions: sin, cos, tan, csc, sec, log, sqrt, abs, asin, acos, atan, sinh, cosh, tanh, and exp(x) (for $e^x$).
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