You have the option to take one of two pain-killing drugs, but you hate taking drugs and wish to choose the one that stays in your system longer. The concentration of pain-killing drug A in the bloodstream, t hours after it is taken orally, is given by the expression
The concentration of pain-killing drug B in the bloodstream, t hours after it is taken orally, is given by the expression
Which drug is the better choice for you? Justify your answer.
