// Numbas version: finer_feedback_settings {"name": "Laplace: Laplace Transform of Constants and Powers of t", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"variable_groups": [], "ungrouped_variables": ["a", "c", "b", "d"], "tags": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "rulesets": {}, "parts": [{"customName": "", "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "variableReplacements": [], "failureRate": 1, "showFeedbackIcon": true, "showPreview": true, "answer": "{a}/s", "checkingType": "absdiff", "customMarkingAlgorithm": "", "type": "jme", "vsetRangePoints": 5, "vsetRange": [0, 1], "scripts": {}, "steps": [{"customName": "", "extendBaseMarkingAlgorithm": true, "variableReplacements": [], "type": "information", "prompt": "

$L\\{k\\}=\\frac{k}{s}$

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Find $L\\{\\var{a} \\}$.

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$L\\{t\\}=\\frac{1}{s^2}$

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Find $L\\{\\var{b}t \\}$.

", "showCorrectAnswer": true, "useCustomName": false}, {"customName": "", "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "unitTests": [], "variableReplacements": [], "failureRate": 1, "showFeedbackIcon": true, "showPreview": true, "answer": "{a}/s+{b}/s^2", "checkingType": "absdiff", "customMarkingAlgorithm": "", "type": "jme", "vsetRangePoints": 5, "vsetRange": [0, 1], "scripts": {}, "steps": [{"customName": "", "extendBaseMarkingAlgorithm": true, "variableReplacements": [], "type": "information", "prompt": "

$L\\{k\\}=\\frac{k}{s}$

\n

$L\\{t\\}=\\frac{1}{s^2}$

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Find $L\\{\\var{a}+\\var{b}t \\}$.

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$L\\{t^n\\}=\\frac{n!}{s^{n+1}}$

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Find $L\\{t^\\var{a}\\}$.

\n

Note:  If you need to enter factorials e.g. $6!$  you type fact(6)

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$L\\{t^n\\}=\\frac{n!}{s^{n+1}}$

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Find $L\\{\\var{a}t^\\var{c}+\\var{b}t^\\var{d}\\}$.

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\n

Use the table of Laplace transforms to answer the following questions.

\n

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See 'show steps'.

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