This week we didn't really learn anything new. On Monday and Tuesday we reviewed optimization. Then on Wednesday we took a quiz on it, then after the quiz we got our study guide for the exam which we will work on until the exam day. Thursday we went on a field trip, and Friday we worked on our packets.
lets go over the rules for finding a limit that approaches inifinty :)
1. if the top degree is equal to the bottom, divide leading coefficients.
2. if top degree is greater than bottom degree, it's infinity
3. if the top top degree is less than bottom degree, it's zero.
Taking derivatives are also all over the calc packet. like product rule, quotient rule, and all the other 36 rules we had to copy.
product rule:
f(x)= x^3cos(3x+4)
f'(x)=3x^2)(cos(3x+4)+(x^3)(-sin(3x+4)(3)
then simplify
one thing i still don't understand is optimization. if they don't give you any problems, how do you know what the primary and secondary equations are! im so confused. i also need help with tangent lines
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For tangents in the packets they give you an equation and either a point or x-value. All you do is take the derivative and then plug in the x-value for x. And that's it!
ReplyDeleteremember to use point slop form if it requires you to find the slope of the tangent line
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