Điều kiện xác định của bất phương trình \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaciiBaiaac+ % gacaGGNbWaaSbaaSqaaiaaiwdaaeqaaOGaaiikaiaadIhacqGHsisl % caaIYaGaaiykaiabgUcaRiGacYgacaGGVbGaai4zamaaBaaaleaada % WcaaqaaiaaigdaaeaacaaI1aaaaaqabaGccaGGOaGaamiEaiabgUca % RiaaikdacaGGPaGaeyOpa4JaciiBaiaac+gacaGGNbWaaSbaaSqaai % aaiwdaaeqaaOGaamiEaiabgkHiTiaaiodaaaa!4E92! {\log _5}(x - 2) + {\log _{\frac{1}{5}}}(x + 2) > {\log _5}x - 3\) là:
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Lời giải:
Báo saiĐiều kiện \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaiqaaqaabe % qaaiaadIhacqGHsislcaaIYaGaeyOpa4JaaGimaaqaaiaadIhacqGH % RaWkcaaIYaGaeyOpa4JaaGimaaqaaiaadIhacqGH+aGpcaaIWaaaai % aawUhaaiabgsDiBpaaceaaeaqabeaacaWG4bGaeyOpa4JaaGOmaaqa % aiaadIhacqGH+aGpcqGHsislcaaIYaaabaGaamiEaiabg6da+iaaic % daaaGaay5EaaGaeyi1HSTaamiEaiabg6da+iaaikdaaaa!5463! \left\{ \begin{array}{l} x - 2 > 0\\ x + 2 > 0\\ x > 0 \end{array} \right. \Leftrightarrow \left\{ \begin{array}{l} x > 2\\ x > - 2\\ x > 0 \end{array} \right. \Leftrightarrow x > 2\)