Điều kiện xác định của bất phương trình \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaciiBaiaac+ % gacaGGNbWaaSbaaSqaaiaaikdaaeqaaOGaaiikaiaadIhacqGHRaWk % caaIXaGaaiykaiabgkHiTiaaikdaciGGSbGaai4BaiaacEgadaWgaa % WcbaGaaGinaaqabaGccaGGOaGaaGynaiabgkHiTiaadIhacaGGPaGa % eyipaWJaaGymaiabgkHiTiGacYgacaGGVbGaai4zamaaBaaaleaaca % aIYaaabeaakiaacIcacaWG4bGaeyOeI0IaaGOmaiaacMcaaaa!5185! {\log _2}(x + 1) - 2{\log _4}(5 - x) < 1 - {\log _2}(x - 2)\) là:
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Lời giải:
Báo saiBPT xác định khi \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaiqaaqaabe % qaaiaadIhacqGHRaWkcaaIXaGaeyOpa4JaaGimaaqaaiaaiwdacqGH % sislcaWG4bGaeyOpa4JaaGimaaqaaiaadIhacqGHsislcaaIYaGaey % Opa4JaaGimaaaacaGL7baacqGHuhY2daGabaabaeqabaGaamiEaiab % g6da+iabgkHiTiaaigdaaeaacaWG4bGaeyipaWJaaGynaaqaaiaadI % hacqGH+aGpcaaIYaaaaiaawUhaaiabgsDiBlaaikdacqGH8aapcaWG % 4bGaeyipaWJaaGynaaaa!57CC! \left\{ \begin{array}{l} x + 1 > 0\\ 5 - x > 0\\ x - 2 > 0 \end{array} \right. \Leftrightarrow \left\{ \begin{array}{l} x > - 1\\ x < 5\\ x > 2 \end{array} \right. \Leftrightarrow 2 < x < 5\)