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.

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

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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