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paulmcquad

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These are questions asked by paulmcquad

Solving Equations Involving Radicals...

paulmcquad 60 Maple
solve homework sqrt
June 03 2020
3 2

Hi,

I'm only getting one Answer instead of two (see below).

Thanks in Advance


 

Example 4: Solving Equations Involving Radicals

 

"ex4a(x):=sqrt(2 x+7)-x-2"

proc (x) options operator, arrow, function_assign; sqrt(2*x+7)-x-2 end proc

(1.1)

"->"

 

NULL

NULL

NULL

sqrt(2*x+7)-x-2

(2*x+7)^(1/2)-x-2

(1.2)

"(->)"

[[x = 1]]

(1.3)

NULL

2*x+7 = x^2+4*x+4

2*x+7 = x^2+4*x+4

(1.4)

"(->)"

[[x = -3], [x = 1]]

(1.5)

x^2+2*x-3 = 0NULL

x^2+2*x-3 = 0

(1.6)

(x+3)*(x-1) = 0

(x+3)*(x-1) = 0

(1.7)

"(->)"

[[x = -3], [x = 1]]``

(1.8)

``


 

Download Radicals.mw

Quadratic Modeling: Internet Users...

paulmcquad 60 Maple
homework modeling plotting
June 02 2020
1 3

I need to plot a model of the amount of internet users starting from 1995 - 2024 in the US.


 

Example : Quadratic Modeling: Internet Users

 

"I:={[[-0.25 t^(2)+16.9 t-50,,5<=t<=24],[,]]"

``

"I ="number of users of internet

t = time i.e 5 = 1995 year

 

NULL


 

Download Modeling_graph.mw

 

Multiplying Complex Numbers...

paulmcquad 60 Maple 2019
complex 2dmath implicit-multiplication
May 26 2020
3 2

I'm having problems with Multiplying Complex Numbers in Maple 2019.

Thanks in Advance.

Example 2: Multiplying Complex Numbers

 

(2-i)(4+3*i)

(3+2*i)(3-2*i)

4*i(-1+5*i)

(3+2*i)^2

2-i(4+3*i)

 

3+2*i(3-2*i)

 

4*i(-1+5*i)

 

(3+2*i)^2

(1.1)

``


 

Download Multiplying_Complex_num.mw

Find Height and Plot a Cylinder...

paulmcquad 60 Maple
homework cylinder plotting
May 17 2020
1 2

I'm still trying to get used to the commands. How do you find the height of a cylinder and plot to a graph?

Thanks in Advance.
 

Example: Using a Formula

 

Height of a Cylinder:

> 

ex6v := 600

> 

ex6r := 4

> 

ex6h := ex6v/Pi(ex6r)^2

600/Pi(4)^2

(1.1)
> 

``


 

Download heightofcylinder.mw

tables of values...

paulmcquad 60 Maple
format table output
May 13 2020
2 0

Is there a way to enter a formula into the coloums to generate the output?
I did the Table of Values by Hand which will take a long time for real data.

Thanks in Advance

``

Example: Verifying Inverse Functions Numerically

 

"ex17f6(x):=(x-5)/(2):"

"ex17g6(x):=2 x+5:"

> 

y3:

ex17f6(ex17g6(x))

x

(1.1)
> 

y4:

ex17g6(ex17f6(x))

x

(1.2)

NULLNULL

 

Table 1: Table of Values

x

y3

y4

-2

-2

-2

-1

-1

-1

0

0

0

1

1

1

2

2

2

3

3

3

4

4

4

 

NULL


 

Download InverseNum.mw

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