Compute: {{MATH_75}} {{CMD_76}} Maybe the biggest key to solving this problem is to recall that {{MATH_77}} So we can rewrite the problem {{MATH_78}} Now, if we make the substitution {{MATH_79}}, we have that {{ENV_80}} and {{ENV_81}} But now we are back to Example {{CMD_82}}, and so we know that {{ENV_83}} {{CMD_84}} {{CMD_85}}