| Event Date: | Event Title: | Event Description: | |
|---|---|---|---|
| 04/11/2011 | Monday, April 11th | Review of stuff we need to know cold! I missed inverse trig derivatives on the timed quiz. d/dx[arcsinx] = 1/root(1-x^2) d/dx[arctanx] = 1/(1+x^2) d/dx[arcsecx] = 1/(abs val(x)root(x^2-1)) Derivatives of the respective cofunctions have -1 in the numerator. | |
| 04/12/2011 | Second Fundamental Theorem of Calculus | d/dx [integral from a to x: f(t)dt] = f(x) Important details: -upper bound must have a different variable from integrand. (but upper bound variable matches function variable on other side) -if upper bound is a more complex function than x (such as x^2), use the chain rule! (ex: f(x^2) = 2xf(x^2)) ^^I think??? | |
| 04/25/2011 | Vertical asymptotes | Remember that to find vertical asymptotes, look at end behavior: limits as function approaches infinity and negative infinity. Also look for places where the function does not exist. | |
| 04/26/2011 | indeterminate forms | 0/0 infinity/infinity ininity-infinity 0*infinity 1^infinity 0^0 infinity^0 *****ZERO TO THE INFINITY EQUALS ZERO***** (but one to the infinity is indeterminate!) | |
| 04/27/2011 | y=vx : variable change for homog. diffEQs | Dr. Chris Tisdell explains Homogeneous diffEQ is in the form of: M(x,y)dx + N(x,y)dy = 0, where M and N are homogeneous functions of the same degree. (means f(tx, ty) = t^n*f(x,y)) ***Separate the dx and the dy first! ...If diffEQ is homogenous, then you can make the substitution y=vx, which also means that dy = xdv +vdx. This will lead to a separable diffEQ, which you can solve in terms of v and then convert v's back into y/x. | |
| 04/28/2011 | things to review... | I'm still uncomfortable with vectors. I need to review displacement, specifically. I also need to review area under a polar curve. I know that the formula is 1/2(integral from alpha to beta of the function squared), but finding the tangent lines where the function and its derivative are zero confuses me. | |
| 04/29/2011 | LIPET | For integration by parts, choosing u: Logarithms Inverse trig Polynomials Exponentials Trig | |
| 05/02/2011 | Know your stuff cold! | I know my inverse trig derivatives. What is Simpson's rule? >>a specific formula used for estimating area under a curve | |
| 05/03/2011 | Day before the exam! | There will only be two non-calculator problems on the free response section. I can do this! |
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