Use the fact that the volume of the cylinder, {{MATH_8}} and that {{MATH_9}}. Express {{MATH_10}} in terms of {{MATH_11}}. Now you can express {{MATH_12}} as a function of {{MATH_13}}. {{CMD_14}} Our objective function {{MATH_15}} is given by the expression {{MATH_16}}. {{CMD_17}} {{CMD_18}} {{CMD_19}} {{MATH_20}} {{CMD_21}} {{CMD_22}} {{CMD_23}}