(1+3√x)^6(1+1/4√x)^10展开式的常数项

(1+3√x)^6(1+1/4√x)^10展开式的常数项: (1+3√x)^6(1+1/4√x)^10展开式的常数项; (1+3√x)^6(1+1/4√x)^10展开式的常数项是“1”.