ADMICRO

Gọi \(S_1,S_2,S_3\) lần lượt là tập nghiệm của các bất phương trình sau: \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGOmamaaCa % aaleqabaGaamiEaaaakiabgUcaRiaaikdacaGGUaGaaG4mamaaCaaa % leqabaGaamiEaaaakiabgkHiTiaaiwdadaahaaWcbeqaaiaadIhaaa % GccqGHRaWkcaaIZaGaeyOpa4JaaGimaaaa!4265! {2^x} + {2.3^x} - {5^x} + 3 > 0\) \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaciiBaiaac+ % gacaGGNbWaaSbaaSqaaiaaikdaaeqaaOWaaeWaaeaacaWG4bGaey4k % aSIaaGOmaaGaayjkaiaawMcaaiabgsMiJkabgkHiTiaaikdaaaa!4137! ;{\log _2}\left( {x + 2} \right) \le - 2\) \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaeWaaeaada % WcaaqaaiaaigdaaeaadaGcaaqaaiaaiwdaaSqabaGccqGHsislcaaI % XaaaaaGaayjkaiaawMcaamaaCaaaleqabaGaamiEaaaakiabg6da+i % aaigdaaaa!3DCA! ; {\left( {\frac{1}{{\sqrt 5 - 1}}} \right)^x} > 1\).Tìm khẳng định đúng?

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