How to enter this Bernoulli equation

JBsvvgPk_normal.jpg Olumide Alege (@oalege87)
5/27/16, 12:00 AM
@TiMathApps how do I input this bernoulli equ


divide both sides by X to have dy/dx +y/X = 1/x*y^2. Now you see how to enter it.
p(X)=1/x and q(X)=1/x n=-2 .
got it?

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Normal Distribution on the TI89 using Statistics Made Easy

Read below please:

ex1. What is the probability of obtaining a sample mean greater than M=60 for a random sample of n=16 scores selected from a normal population with a mean of 65 and a standard deviation of 20?

Go To F3 7 and select Normal distribution, enter
std dev=20/sqrt(16)=20/4 = 5 so just enter 5
M = 60

Then in the dropdown menu select option 2: P(x>a) . Voila 84.1345%

ex2. What are the boundaries for the middle 50% of all possible random samples of n=25 scores selected from a normal population with a mean of 80 and a standard deviation of 10?

Go To F3 7 , enter
std dev=10/sqrt(25)=10/5 = 2 so just enter 2
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Evaluating Integrals on the TI89 using Calculus Made Easy

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New Ti-Nspire apps available: Chemistry and Differential Equations

1) Step by Step Chemistry solutions for Stoichiometry, Mass, Moles, Gas Laws , Period Table of Elements, Significant Digits and much more.

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More Info :

Solving 2. order Vibrating Spring Differential Equation using the TI89

The shown spring problem can be solved using DEQME : F2 G enter

w=9.81 (to make coeff=1)





Hit ENTER about 7 times , Variation of Parameter will be used to solve, then you may enter your initial conditions





Solve 2. and 3. order Differential Equations using TI89

Using Differential Equations Made for the TI89 we enter the 3 problems as shown below. Screenshots show how the problems were entered and the solutions.

Question 2) y”-2y+5y=0   y(0)=2  y'(0)=4

go to F2 2 and enter b=-2 and c=5 , x0=0, y(x0)=2 y,(x0)=4

Question 3) y”-3y+2y=6e^(-x)    y(0)=1 y'(0)=2 .

go to F2 3 and enter b=-3 c=2 , g=6e^(-x) x0=0 y(x0)=1 y'(x0)=2 . The corresponding homogeneous solution can be found with steps under F2 2

Question 4)  y”’-4y”+13y’=e^(-x)

the solution is the sum of the homogeneous and particular solutions. Thus, use 2 steps.

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