关于GREQuantitative的精选

2=a2+2ab+b22=a2-2ab+b23=a3+3a2b+3ab2+b33=a3-3a2b+3ab2-b3一元二次方程ax2+bx+c=0的解x,=/2aSimpleInterest:利息Interest=本金Principal3时间Time3利率Rate。CompoundInterest:A=n;A为本利和，P为本金,R为利率,n为期...