Suppose that {{MATH_12}} is differentiable on the interval {{MATH_13}}, continuous on the interval {{MATH_14}}, and that {{MATH_15}}. {{CMD_16}} {{ENV_17}} {{COMMENT_18}} {{COMMENT_19}} {{COMMENT_20}} {{CMD_21}} Then {{MATH_22}} for some {{MATH_23}} in the open interval {{MATH_24}}. {{CMD_25}}