This Month
August 2005
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
Month Archive
Year Archive
View Article  Cold and Snow
Let x be "it is cold" and let y be "it is snowing".  Describe each of the following:

(1) ~x

(2) x ^ y

(3) ~x ^ ~y

(4) ~(~y)
View Article  Derivatives
Find the derivative for the following:

f(x) = 3x6 + 5x - 4
View Article  Propositions
Verify that the proposition (p ^ q) ^ ~ (p v q) is a contradiction.
View Article  Related Rates
As a last ditch attempt to destroy a meteor propelling towards Earth, NASA scientists decide to launch a nuclear warhead. As the two converge, the missile and the meteor are at right angles to each other. The nuke is 700 miles away from the point of impact and traveling at 900 MPH; the meteor is 500 miles from impact and traveling at 1100 MPH.

(1) At what rate is the distance between the two decreasing?

(2) How much time until they converge?

(3) Since the beginning of the war in Iraq, how many people have died in the US due to inflated defense budgets in lieu of increased health department budgets?
View Article  Snowballs
A snowball rolls down a hill gathering snow as it rolls and keeping perfectly spherical shape as it goes.   more »
View Article  Least Squares
Use the method of least squares to find a line that best fits the points (-1,-1) (0,0) and (2,1). Use this to estimate the value of y when x = 1.

Cool calculus resources:

Calculus on the Web

BOTW Math

Calculus Solutions
View Article  Derivative
Compute the derivative of the following equation:

f(x) = x3(2x+4)2
View Article  Implicit Differentiation

Let x1/2+y1/2=a1/2. Find y' using implicit differentiation.

View Article  Velocity
An object moves in a wind tunnel along a straight line path so that the distance in feet it has traveled after t seconds is given by s=20t-t3/2

(1) What is the average velocity of the object during the time interval [2.5,5.4]?

(2) What is the instantaneous velocity at time t = 3 seconds?
View Article  Derivatives
Determine a so that f(x) is continuous at every point:




View Article  Power Substitution
Integrate the following



*HINT - Remove the ``outside" square root first and use the power substitution
View Article  Logarithmic Differentiation
Consider the function



Determine the slope of the line perpendicular to the graph of f at x=1 .
View Article  Squeeze Principle
Given that:



Show that f is continuous at x=0