Canonical URI: https://w3id.org/kmath/textbook_solution/jihak_solution_body_p048_example_02
| rdf:type | math:TextbookSolution |
|---|---|
| rdfs:label | 지학사 p048 예제 2 풀이 |
| rdfs:comment | 지학사 공통수학1 교과서 p048 본문 예제 2 풀이. |
| math:answerText | \(\frac35+\frac45 i\) |
| math:explanationText | 분모의 켤레복소수를 분모와 분자에 각각 곱하면 \[ \frac{2+i}{2-i}=\frac{(2+i)^2}{(2-i)(2+i)} =\frac{4+4i+i^2}{2^2-i^2} =\frac{(4-1)+4i}{4+1} =\frac35+\frac45 i \] |
| math:mappingConfidence | 1.0 |
| math:pageStart | 48 |
| math:problem | textbook_problem:jihak_vision_p048_example_02 |
| math:reviewStatus | reviewed |
| math:solutionKind | worked_solution |
| math:usesSolutionPattern | solution_pattern:complex_number_algebra |
| math:usesSolutionPattern | solution_pattern:conjugate_complex_rationalization |