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math
would this be a correct proof of the cauchyschwartz inequality: abs=absolute value abs(u*v) is less than or equal to abs(u)*abs(v). Then you divide both sides by abs(u)*abs(v) so that you get cos(theta) is less than or equal to
asked by annie on May 14, 2009 
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Can abs(287w)=7abs(w) be written as abs(w4)=abs(w) and if so why surely it should be abs(4w)=abs(w) can any one explain why I can just chane the signs Yes, it can be written that way. I don't see that you have changed any
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Find the critical number(s) of f(x)= abs(2x4) What is the derivative of abs(2x4)? Is it abs(2)? No. You have to specify the domain of x. At x=2, this function has no derivative. At x>2, f' = d (2x 4)/dx= 2 at x
asked by Brian on December 17, 2006 
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how do you expand Ln abs(ã(ã7 x^3+2x^2))
asked by Ashley on February 19, 2008 
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solve for limits of 1+ and 1 for this function: (x^2 + abs (x1)  1)/ abs (x1) i don't know how to simplify abs. value expression times polynomial. can someone please help.
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calculus
Sketch the curve y = x^3  12x^2 + 36x I already did the question properly it is concave down at (0,4) and concave up at (4,infinity) I found the abs max to be (2,32) and abs min to be (6,0) What I wanted to know is when labeling
asked by Daniel on November 21, 2011 
math
So I need to solve this differential equation dy/dx = 1/(x+2) so i solved it like this dy = 1/(x+2)dx then i took the integral of both sides y= ⌠1/(x+2)dx ⌡ then performed a u sub u = x+2 du = 1dx y = ⌠du/u ⌡ y = ln
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Show the conhecture is false by finding a counterexample... 1. The differnece of the absolute value of two numbers is positive meaning /a/  /b/ > 0 I do not get that.... =/ HELP. If absolute value of a is greater than the
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Calculus
Let f(x)= abs of negative abs of x + pi/2 close abs and g(x)= abs of cosx. the wording might be confusing so here is another description of the equation (the "vertical line" that I refer to is the line you draw as you draw the
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The data below has been taken for the reaction of a dye with the hydroxide ion. The reaction was performed at two different hydroxide ion concentrations while the dye concentration was kept constant. What is the rate law? [OH─]
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