1 câu trả lời
Đáp án:
TCĐ: x=2, không có TCN
Giải thích các bước giải: $% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqr1ngB % PrgifHhDYfgasaacH8srps0lbbf9q8WrFfeuY-Hhbbf9v8qqaqFr0x % c9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qqQ8fr % Fve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeaaeaaakqaabeqaam % aalaaabaGaamiEamaaCaaaleqabaGaaGOmaaaakiabgkHiTiaadIha % cqGHsislcaaI2aaabaGaamiEaiabgkHiTiaaikdaaaGaeyypa0ZaaS % aaaeaacaWG4bWaaWbaaSqabeaacaaIYaaaaOGaey4kaSIaaGOmaiaa % dIhacqGHsislcaaIZaGaamiEaiabgkHiTiaaiAdaaeaacaWG4bGaey % OeI0IaaGOmaaaacqGH9aqpdaWcaaqaaiaadIhacaGGUaGaaiikaiaa % dIhacqGHRaWkcaaIYaGaaiykaiabgkHiTiaaiodacaGGUaGaaiikai % aadIhacqGHRaWkcaaIYaGaaiykaaqaaiaadIhacqGHsislcaaIYaaa % aaqaaiabg2da9maalaaabaGaaiikaiaadIhacqGHsislcaaIZaGaai % ykaiaac6cacaGGOaGaamiEaiabgUcaRiaaikdacaGGPaaabaGaamiE % aiabgkHiTiaaikdaaaaaaaa!6898! \begin{array}{l} \frac{{{x^2} - x - 6}}{{x - 2}} = \frac{{{x^2} + 2x - 3x - 6}}{{x - 2}} = \frac{{x.(x + 2) - 3.(x + 2)}}{{x - 2}}\\ = \frac{{(x - 3).(x + 2)}}{{x - 2}} \end{array}$ Đkxđ: x#2 TCĐ của hs là x=2 Hàm số không có TCN