Original
Which of the following functions are continuous but not
differentiable on {{MATH_40}}?
{{CMD_41}}
{{CMD_42}}{{MATH_43}}{{CMD_44}}
{{CMD_45}}{{MATH_46}}{{CMD_47}}
{{CMD_48}}{{MATH_49}}{{CMD_50}}
{{CMD_51}}{{MATH_52}}{{CMD_53}}
{{CMD_54}}
{{CMD_55}}