Consider the function {{MATH_46}} {{CMD_47}} {{ENV_48}} {{COMMENT_49}} {{COMMENT_50}} {{COMMENT_51}} {{COMMENT_52}} {{COMMENT_53}} {{COMMENT_54}} {{COMMENT_55}} {{COMMENT_56}} {{COMMENT_57}} {{CMD_58}} Is this function continuous at {{MATH_59}}? {{CMD_60}} We must show that {{MATH_61}}. First, let's assume that {{MATH_62}} and small. Since {{MATH_63}}