Question

find common difference of the AP , 1/2r,1-3r/2r,1-6r/2r......

Answer 1

Hii dear here is your answer.......

D=a2-a1
a2=1-3r/2r
a1=1/2r

D=1-3r/2r-1/2r

Answer 2

Answer:

The common difference of the AP is $\frac{-3}{2}$.

Step-by-step explanation:

The given AP is

$\frac{1}{2r}, \frac{1-3r}{2r},\frac{1-6r}{2r},...$

$a_1=\frac{1}{2r}$

$a_2=\frac{1-3r}{2r}$

The formula of common difference is

$d=a_2-a_1$

$d=\frac{1-3r}{2r}-\frac{1}{2r}$

$d=\frac{1-3r-1}{2r}$

$d=\frac{-3r}{2r}$

$d=\frac{-3}{2}$

Therefore the common difference of the AP is $\frac{-3}{2}$.