MathematicsMedium98×since 2002Q4806The sum ∑r=110(r2+1)×(r!)\sum\limits_{r = 1}^{10} {\left( {{r^2} + 1} \right) \times \left( {r!} \right)}r=1∑10(r2+1)×(r!) is equal to :A(11)!B10 ×\times× (11!)C101 ×\times× (10!)D11 ×\times× (11!)Check answerSkip