show all the steps in the solution of a specified problem
(optional) posint or a calculus1 problem; the problem to solve
(optional) options of the form keyword=value, where keyword is one of maxsteps, searchoptimal, showrules, output, displaystyle.
The ShowSolution command is used to show the solution steps for a Calculus1 problem, that is, a limit, differentiation or integration problem such as can be expected to be encountered in a single-variable calculus course.
If p is omitted, the current (most recently referenced) problem is solved. Otherwise, the problem referenced by p is solved. A problem can be referenced either by its problem number (see GetProblem and ShowIncomplete) or by the problem itself, for example via a label.
These options can be used to control how the problem is solved:
maxsteps = posint (default: 25)
This puts a limit on the number of rules which can be applied to solve a problem.
searchoptimal = truefalse (default: true)
The default behavior is to try to determine the shortest solution sequence. If this option is given as searchoptimal = false, the first solution discovered will be displayed.
These options can be used to control how the problem is displayed:
showrules = truefalse (default: true)
Normally, the rule applied at each step of the solution is displayed; if this option is given as showrules=false, the rules are not shown, and the displaystyle is brief.
output = canvas,script,record,list,print,printf,typeset,link (default: typeset)
The output options are described in Student:-Basics:-OutputStepsRecord
displaystyle= columns,compact,linear,brief (default: linear)
The displaystyle options are described in Student:-Basics:-OutputStepsRecord. Setting displaystyle = brief shows the steps in a compact form with one or two words at each step to describe the rule being applied.
If you set infolevel[Student] := 1 or infolevel[Student[Calculus1]] := 1 (see infolevel), Maple may display some additional, useful information about the state of the problem and its solution.
Differentiation Stepsⅆⅆxx2⁢sin⁡x▫1. Apply theproductrule◦Recall the definition of theproductruleⅆⅆxf⁡x⁢g⁡x=ⅆⅆxf⁡x⁢g⁡x+f⁡x⁢ⅆⅆxg⁡xf⁡x=x2g⁡x=sin⁡xThis gives:ⅆⅆxx2⁢sin⁡x+x2⁢ⅆⅆxsin⁡x▫2. Apply thepowerrule to the termⅆⅆxx2◦Recall the definition of thepowerruleⅆⅆxx=⁢x−1◦This means:ⅆⅆxx2=◦So,ⅆⅆxx2=We can rewrite the derivative as:2⁢x⁢sin⁡x+x2⁢ⅆⅆxsin⁡x▫3. Evaluate the derivative ofsin(x)◦Recall the definition of thesinruleⅆⅆxsin⁡x=cos⁡xThis gives:2⁢x⁢sin⁡x+x2⁢cos⁡x
Integration Steps∫sin⁡x2ⅆx▫1. Rewrite◦Equivalent expressionsin⁡x2=12−cos⁡2⁢x2This gives:∫12−cos⁡2⁢x2ⅆx▫2. Apply thesumrule◦Recall the definition of thesumrule∫f⁡x+g⁡xⅆx=∫f⁡xⅆx+∫g⁡xⅆxf⁡x=12g⁡x=−cos⁡2⁢x2This gives:∫12ⅆx+∫−cos⁡2⁢x2ⅆx▫3. Apply theconstantrule to the term∫12ⅆx◦Recall the definition of theconstantrule∫Cⅆx=C⁢x◦This means∫12ⅆx=x2We can now rewrite the integral as:x2+∫−cos⁡2⁢x2ⅆx▫4. Apply theconstant multiplerule to the term∫−cos⁡2⁢x2ⅆx◦Recall the definition of theconstant multiplerule∫⁢f⁡xⅆx=⁢∫f⁡xⅆx◦This means:∫−cos⁡2⁢x2ⅆx=−∫cos⁡2⁢xⅆx2We can rewrite the integral as:x2−∫cos⁡2⁢xⅆx2▫5. Apply a change of variables to rewrite the integral in terms ofu◦Letubeu=2⁢x◦Isolate equation forxx=u2◦Differentiate both sides=2◦Substitute the values for x and dx back into the original∫cos⁡2⁢xⅆx=∫cos⁡u2ⅆuThis gives:x2−∫cos⁡u2ⅆu2▫6. Apply theconstant multiplerule to the term∫cos⁡u2ⅆu◦Recall the definition of theconstant multiplerule∫⁢f⁡uⅆu=⁢∫f⁡uⅆu◦This means:∫cos⁡u2ⅆu=∫cos⁡uⅆu2We can rewrite the integral as:x2−∫cos⁡uⅆu4▫7. Evaluate the integral ofcos(u)◦Recall the definition of thecosrule∫cos⁡uⅆu=sin⁡uThis gives:x2−sin⁡u4▫8. Revert change of variable◦Variable we defined in step5u=2⁢xThis gives:x2−sin⁡2⁢x4
Integration Steps∫14⁢x2+4⁢x+1ⅆx▫1. Apply a change of variables to rewrite the integral in terms ofu◦Letubeu=x+12◦Isolate equation forxx=−12+u◦Differentiate both sides=◦Substitute the values for x and dx back into the original∫14⁢x2+4⁢x+1ⅆx=∫1u2ⅆu4This gives:∫1u2ⅆu4▫2. Apply thepowerrule to the term∫1u2ⅆu◦Recall the definition of thepowerrule, for n≠-1∫uⅆu=◦This means:∫1u2ⅆu=◦So,∫1u2ⅆu=−1uWe can rewrite the integral as:−14⁢x+2
The Student[Calculus1][ShowSolution] command was updated in Maple 2021.
The output and displaystyle options were introduced in Maple 2021.
For more information on Maple 2021 changes, see Updates in Maple 2021.
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