Question

Write the arithmetic progression when first term $a$ and common difference $d$ are $a=-1.5,d=-0.5$

Answer 1

Arithmetic progression is the sequence of numbers such that the difference between the consecutive numbers is constant.

If the first term is $a$ and the common difference is $d$ then the sequence is $a,a+d,a+2d,a+3d,...$

Given that first term $a=-1.5$ and

common difference $d=-0.5$

Therefore, the sequence is $-1.5,-1.5+(-0.5),-1.5+2(-0.5),1.5+3(-0.5),...$

$⟹-1.5,-2,-2.5,-3,...$ is the required arithmetic progression.