Cho hàm số \(y = f\left( x \right)\) liên tục trên \((a;b)\). Điều kiện cần và đủ để hàm số liên tục trên \(\left[ {a;b} \right]\) là
A.\(\mathop {\lim }\limits_{x \to {a^ + }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ + }} f\left( x \right) = f\left( b \right)\)
B.\(\mathop {\lim }\limits_{x \to {a^ + }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ - }} f\left( x \right) = f\left( b \right)\)
C.\(\mathop {\lim }\limits_{x \to {a^ - }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ + }} f\left( x \right) = f\left( b \right)\)
D. \(\mathop {\lim }\limits_{x \to {a^ - }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ - }} f\left( x \right) = f\left( b \right)\)
A.\(\mathop {\lim }\limits_{x \to {a^ + }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ + }} f\left( x \right) = f\left( b \right)\)
B.\(\mathop {\lim }\limits_{x \to {a^ + }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ - }} f\left( x \right) = f\left( b \right)\)
C.\(\mathop {\lim }\limits_{x \to {a^ - }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ + }} f\left( x \right) = f\left( b \right)\)
D. \(\mathop {\lim }\limits_{x \to {a^ - }} f\left( x \right) = f\left( a \right),\mathop {\lim }\limits_{x \to {b^ - }} f\left( x \right) = f\left( b \right)\)
Loga
Hóa Học lớp 12
