1.2.4.1 Rewrite an expression using a positive index

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Name	Status	Author	Last Modified
1.2.4.1 Rewrite an expression using a positive index	Ready to use	Merryn Horrocks	28/06/2023 05:34
1.2.4 Task: Rewrite an expression using a positive index	Ready to use	Merryn Horrocks	08/07/2023 06:41

Question statement

Write $\displaystyle{\var{expr}}$ using a positive index.

Give any introductory information the student needs.

			Name	Type	Generated Value

alphabet	list	List of 20 items
letter	string	d
idx	integer	3
isFrac	integer	0
expr	expression	1/d^(-3)
ans	expression	d^3
v	expression	d

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
['a','b','c','d','f','g','h','k','m','n','p','q','r','s','t','v','w','x','y','z']

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `list`

[ "a", "b", "c", "d", "f", "g", "h", "k", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z" ]

→ Used by:

letter

This variable doesn't seem to be used anywhere.

Advice

$\var{expr}=\frac{1}{\var{v}^{\var{idx}}}$

$\var{expr}=\var{v}^{\var{idx}}$

$=\var{v}$

$=\frac{1}{\var{v}}$

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Part	Test	Passed?
Mathematical expression
Mathematical expression		Hasn't run yet

This question is used in the following exams:

HELM Book 1.2 Mastery by Merryn Horrocks in HELM books.
HELM Book 1.2 Diagnostic by Merryn Horrocks in HELM books.
HELM Book 1.2 Indices by Merryn Horrocks in HELM books.
HELM Book 1.2.4 exercises by Merryn Horrocks in HELM books.

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1.2.4.1 Rewrite an expression using a positive index

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Merryn Horrocks 1 year, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Error in variable testing condition

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Generated value: `list`

Parts

Mathematical expression

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1.2.4.1 Rewrite an expression using a positive index

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Merryn Horrocks 1 year, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Merryn Horrocks 2 years, 10 months ago

Error in variable testing condition

Error

Warning

Generated value: list

Parts

Mathematical expression

Advanced settings

Checking accuracy

Variable value generators

Pattern restriction

Variables

String restrictions

Generated value: `list`