Question

The algebraic expression of a sequence is Xn = n3-6n2+13n-7. Is it an arithmetic sequence?​

Answer 1

Answer:

Ans-246 in the algebraic.

Answer 2

Answer:

It is not an arithmetic sequence.

Step-by-step explanation:

It is given that $X_{n} = n^{3} -6n^{2} +13n-7$

Arithmetic Progression is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value.

The constant value is common difference.

Using $n=1$, we will get first term.

$a=1-5+13-7=1$

Using $n=2$, we will get second term.

$a_{2} =8-24+26-7=3$

Using $n=3$,

$a_{3} =27-54+39-7=5$

Using $n=4$,

$a_{4} =64-96+52-7=13$

The common difference is not constant.

It is not an AP.

#SPJ2