State the form of the limit. {{MATH_3}} The limit is of the form {{CMD_4}}{{CMD_5}}nonzero over zero{{CMD_6}} {{CMD_7}}zero over zero{{CMD_8}}{{CMD_9}}. {{CMD_10}} Multiply the numerator and denominator of that fraction by the conjugate of {{MATH_11}}. Then for all {{MATH_12}}, {{MATH_13}} {{CMD_14}} Use this ``simplified'' formula for {{MATH_15}} to evaluate the limit: {{MATH_16}} {{CMD_17}} {{CMD_18}} {{CMD_19}} {{CMD_20}} {{CMD_21}}