有理表达式的化简及定义域说明

GeoGebra 命令及参数

1. Element(questionList, questionListIndex) → questionNum
2. UnicodeToLetter(10003) → cmark
3. UnicodeToLetter(10007) → xmark
4. Element(B2:B7, questionNum) → correctRightText
5. Element(C2:C7, questionNum) → correctLeftText
6. Element(D2:D7, questionNum) → incorrectRightText
7. Element(E2:E7, questionNum) → incorrectLeftText
8. Element(F2:F7, questionNum) → feedback
9. Element(A2:A7, questionNum) → questionText
10. LaTeX((((("\text{" * QUESTION) * "\\") * INSTRUCTIONS) * "}")) → TEXT
11. LaTeX("t \ne 0, 2") → B2
12. LaTeX("\dfrac{3}{4t^2}") → C2
13. LaTeX("\dfrac{3(t-2)}{2t(2t^2-4t)}") → E2
14. LaTeX("x \ne -3") → B4
15. LaTeX("x \ne 3") → D4
16. LaTeX("x-3") → C4
17. LaTeX("\dfrac{x^2-9}{x+3}") → E4
18. LaTeX("x \ne -1, -3") → B5
19. LaTeX("\dfrac{x+1}{x+3}") → C5
20. LaTeX("\dfrac{2x+1}{4x+3}") → E5
21. LaTeX("t \ne 1, -\tfrac{1}{2}") → B6
22. LaTeX("\dfrac{t^2}{t-1}") → C6
23. LaTeX("\dfrac{t^2}{t+1}") → E6
24. LaTeX("\dfrac{(t\hspace{-4}-\hspace{-4}1)(t\hspace{-4}+\hspace{-4}5)}{(t\hspace{-4}-\hspace{-4}5)(1\hspace{-4}-\hspace{-4}t)}") → A3
25. LaTeX("t \ne 1, 5") → B3
26. LaTeX("-\dfrac{t+5}{t-5}") → C3
27. LaTeX("\dfrac{t+5}{t-5}") → E3
28. LaTeX("\dfrac{3t-6}{4t^3-8t^2}") → A2
29. LaTeX("\dfrac{2x^2-18}{2x+6}") → A4
30. LaTeX("\dfrac{x^2+2x+1}{x^2+4x+3}") → A5
31. LaTeX("\dfrac{6t^3+3t^2}{6t^2-3t-3}") → A6
32. Text(If[isRightCorrect, correctRightText, incorrectRightText], puzzleAnchor + (9.5, 7.5), true, true) → matchedRightText
33. Text(If[isLeftCorrect, correctLeftText, incorrectLeftText], puzzleAnchor + (2.75, 5.25), true, true) → matchedLeftText
34. LaTeX("t \ne 0") → D2
35. LaTeX("t \ne 5") → D3
36. LaTeX("x \ne -3") → D5
37. LaTeX("t \ne 1") → D6