Question

1. The list of numbers -8,-5, -2, 1 ______ is:​

Answer 1

Difference between =>

-5 - (-8) = 3

-2 - (-5) = 3

1 - (-2) = 3

(ii) An A. P. with d = 3 is the correct answer.

The difference between each term is of 3.

Extra Information:

To know the particular place term in AP use this formula,

aₙ = a₁ + (n-1)d

To know the sum of series of particular range in AP,

Sₙ = n(a₁ + aₙ)/2

a₁ means the first term.

aₙ means last term.

Answer 2

Answer:

Here

a = -8

d = a2 - a1

= -5 -(-8)

= -5 + 8

= 3

for verification

d = a3 - a2

= -2 -(-5)

= -2 + 5

= 3

Yes the terms are in Arithmetic progression

HOPE IT WILL HELP YOU