Tập nghiệm của bất phương trình \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaciiBaiaac+ % gacaGGNbWaaSbaaSqaaiaaiodaaeqaaOWaaeWaaeaaciGGSbGaai4B % aiaacEgadaWgaaWcbaWaaSaaaeaacaaIXaaabaGaaGOmaaaaaeqaaO % GaamiEaaGaayjkaiaawMcaaiabgYda8iaaigdaaaa!4289! {\log _3}\left( {{{\log }_{\frac{1}{2}}}x} \right) < 1\) là:
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Lời giải:
Báo sai\(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaciiBaiaac+ % gacaGGNbWaaSbaaSqaaiaaiodaaeqaaOWaaeWaaeaaciGGSbGaai4B % aiaacEgadaWgaaWcbaWaaSaaaeaacaaIXaaabaGaaGOmaaaaaeqaaO % GaamiEaaGaayjkaiaawMcaaiabgYda8iaaigdacqGHuhY2caaIWaGa % eyipaWJaciiBaiaac+gacaGGNbWaaSbaaSqaamaalaaabaGaaGymaa % qaaiaaikdaaaaabeaakiaadIhacqGH8aapcaaIZaaaaa!4DEE! {\log _3}\left( {{{\log }_{\frac{1}{2}}}x} \right) < 1 \Leftrightarrow 0 < {\log _{\frac{1}{2}}}x < 3\)
\(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGimaiabgY % da8iGacYgacaGGVbGaai4zamaaBaaaleaadaWcaaqaaiaaigdaaeaa % caaIYaaaaaqabaGccaWG4bGaeyipaWJaaG4maiabgsDiBlaaigdacq % GH+aGpcaWG4bGaeyOpa4ZaaeWaaeaadaWcaaqaaiaaigdaaeaacaaI % YaaaaaGaayjkaiaawMcaamaaCaaaleqabaGaaG4maaaakiabgsDiBp % aalaaabaGaaGymaaqaaiaaiIdaaaGaeyipaWJaamiEaiabgYda8iaa % igdaaaa!50CE! 0 < {\log _{\frac{1}{2}}}x < 3 \Leftrightarrow 1 > x > {\left( {\frac{1}{2}} \right)^3} \Leftrightarrow \frac{1}{8} < x < 1\)