ADMICRO

Cho hàm số \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOzamaabm % aabaGaamiEaaGaayjkaiaawMcaaiabg2da9iGacshacaGGHbGaaiOB % amaabmaabaGaamiEaiabgkHiTmaalaaabaGaaGOmaiabec8aWbqaai % aaiodaaaaacaGLOaGaayzkaaaaaa!43F4! f\left( x \right) = \tan \left( {x - \frac{{2\pi }}{3}} \right)\). Giá trị f'(0) bằng

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