paulmcquad

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These are questions asked by paulmcquad

Hi,

I was wondering is there an easier way for me to solve an Equation Involving an Absolute Value?


 

Example: Solving an Equation Involving an Absolute Value

 

x^2-3*x = -4*x+6

x^2-3*x = -4*x+6

(1.1)

"(->)"

[[x = 2], [x = -3]]

(1.2)

-x^2+3*x = -4*x+6

-x^2+3*x = -4*x+6

(1.3)

"(->)"

[[x = 1], [x = 6]]

(1.4)

"ex7(x):=|x^(2)-3 x|+4 x-6"

proc (x) options operator, arrow, function_assign; abs(x^2-3*x)+4*x-6 end proc

(1.5)

"->"

 

``

NULL


 

Download Absolute_Value.mw

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

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

 

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

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

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