Archive for April, 2008

Calculus: limits, differentiation, integration :: question on …

Saturday, April 26th, 2008

unknown: Author: orangesky Subject: question on intergration Posted: Sat Apr 26, 2008 6:30 am (GMT -5) Topic Replies: 0 i read the following proof: L(t^n)= integral 0 to infinity (e^-st * t^n dt) = integral 0 to infinity (t^nd((e^-st)/(-s))) … Share and Enjoy: These icons link to social bookmarking sites where ...

Are Mathematical Truths Discovered or Invented?

Saturday, April 26th, 2008

unknown: Reuben Hersh of the University of New Mexico …rejects the Platonic view, arguing instead that mathematics is a product of human culture, not fundamentally different from other human creations like music or law or money. … Share and Enjoy: These icons link to social bookmarking sites where readers can share and ...

trigonometry inequalities

Saturday, April 26th, 2008

Manish Verma: 1. The problem statement, all variables and given/known data Find the values for x. Click to see the LaTeX code for this image 2. Relevant equations 3. The attempt at a solution Click to see the LaTeX code for this image … Share and Enjoy: These icons link to social ...

Trigonometry three dimensional question

Saturday, April 26th, 2008

unknown: I need help to solve: A cylinder with radius 4 cm and perpendicular height 15 cm is tilted so that it will just fit inside a 12 cm high box. At what angle must it be tilted? Answer given at the back of the text book is 16 degrees ...

A little rant about me

Saturday, April 26th, 2008

mathtutoringhelps: Somehow I’m still honestly convinced that I suck at math, even though I was awarded first place in the recreational freshman math exam (NOT the freshmen math exam) just yesterday. Peer comparison is a weak way to find confidence, … Share and Enjoy: These icons link to social bookmarking sites where ...

????? I haven't slept for a long time, here is poem ??????

Saturday, April 26th, 2008

hunnybunz: The rain alone drones onward. In this delicate wisp, I call out to you. The scent of repose, in each drop of water, collects in the basins of my cavities. Empty, with nothing else, I call out to you. The rain alone, … Share and Enjoy: These icons link to social ...

UNsolved problem 138610 added to Trigonometry-basics

Saturday, April 26th, 2008

unknown: Click on the link to solve this problem: Find the exact solutions of the equation: sin2x+2cosxsin2x=0 for x is greater than or = to 0 and less than or = to 2pie. I know I use a double angle formula for this but I am not sure of how ...

UNsolved problem 138608 added to Trigonometry-basics

Saturday, April 26th, 2008

webmaster@algebra.com: Click on the link to solve this problem: Find the exact solutions of the equation: sinx+cosxcotx =cscx, for 0. Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

UNsolved problem 138611 added to Trigonometry-basics

Saturday, April 26th, 2008

lalji: Click on the link to solve this problem: Solve the equation on [0,2pie). Give exact answers. cos2x-tanx=1. Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

[ap-calculus] derivative of arcsecant

Saturday, April 26th, 2008

unknown: do many texts use absolute value when defining the derivative of arcsecant? I just corresponded with Richard Parris, the author of the. Read more