is {{CMD_71}}{{CMD_72}}continuous{{CMD_73}}{{CMD_74}}not continuous{{CMD_75}}{{CMD_76}} at {{MATH_77}} because: {{CMD_78}} {{CMD_79}}{{MATH_80}}{{CMD_81}} {{CMD_82}}{{MATH_83}} does not exist{{CMD_84}} {{CMD_85}}{{MATH_86}} is not in the domain of {{MATH_87}}{{CMD_88}} {{CMD_89}}{{MATH_90}} exists but is not {{MATH_91}}{{CMD_92}} {{CMD_93}}