Prove that the distance travelled by a body in the nth second is snth

1.	Prove that the distance travelled by a body in the nth second is snth = u + a/2 (2n-1)
Answer» \xa01. Graphical Method:The distance travelled is the area of the shaded portion.\xa0= area of CDFG + area of BCDE= area of CDFG + area of ADE - Area of ACB2. Integration method:

Discussion