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What is -2^2? 2010-08-25
From alex:
I know that (-2)^2 is 4 but what is -2^2?
Answered by Robert Dawson and Penny Nom.
The graph of f(x-2) 2009-11-19
From Kapilan:
Hi please answer the following question:
Given the function f(x)=x^2 sketch the graph of f(x-2)

Answered by Robert Dawson.
Integration of cos (x^2) dx 2009-10-12
From Venkat:
How do you evaluate the integration of cos (x^2) dx ?
Answered by Harley Weston.
2/sqrt(2) 2003-05-07
From Mike:
I was looking at an example of csc 45 deg where

csc = hyp / opp = 1 / (sqrt(2) / 2) = 2 / sqrt(2) = sqrt(2)

I just don't get this. If sqrt(2) = 1.4142145..... How can 2 / sqrt(2) = sqrt(2) as the example shows?


Answered by Penny Nom.
f(x), f(x) + 2, f(x +2) 2001-04-04
From Monica:
Could you explain to me how one should go about graphing functions such as f(x), f(x+2), and so on. Also, how should you explain things such as constants and relationships among functions?
Answered by Penny Nom.
Comment fait on pour justifier que... 2002-09-30
From Lucie:
Comment fait on pour justifier que p au carré est égal à 2 fois q au carré?
Answered by Claude Tardif.
 
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