Limit controls must follow a math operator. ^^I^^I\end{split}
时间: 2023-11-13 19:25:35 浏览: 40
It seems like the expression you wrote is incomplete and there is a limit control without a math operator. In order to evaluate limits in mathematics, you need to have a function and a limit point. The limit control should follow a math operator such as "+" or "-" to indicate the direction from which the limit point is approached. For example, if you have a function f(x) and you want to evaluate the limit as x approaches 0 from the right, you would write:
lim x → 0+ f(x)
The "+"" after the 0 indicates that we are approaching 0 from the right. If you want to approach 0 from the left, you would use a "-" instead:
lim x → 0- f(x)
So make sure to include a math operator before the limit control in your expression.