MathematicsEasy175×since 2002Q2623If ppp and qqq are positive real numbers such that p2+q2=1{p^2} + {q^2} = 1p2+q2=1, then the maximum value of (p+q)(p+q)(p+q) isA12{1 \over 2}21B12{1 \over {\sqrt 2 }}21C2{\sqrt 2 }2D222Check answerSkip