First to merge similar radical, and will not be the same kind of radical operation ligatures symbols together. The multiplication of the root is different from the addition and subtraction,but it also needs to be simplified first,and the number of… Continue Reading
The square root is a mathematicial symbol.The square root is a symbol that represents the operation of a number or a algebraic operator The square root cannot be negative.
An=A1*q^（n－1） a1 is the leading term,q is equal to the radio of series,and Sn is equal to the first n terms and.
3,8,13,18 d=5 T50 S50 T50=T1+49d T50=3+245 T50=248 S50= S50=[50(3+248)]➗2 S50=6275 After class I learned arithmetic progression and the arithmetic of arithmetic progression and how to solve questions .