Question

then
If P-1, P+3,31-1 arte in AP.
find the valua
P.​

Answer 1

Answer:

p+3=p-1

p+p=1+3

2p=4

p=2

Answer 2

Answer:

since they are in AP

a=p-1

d=(p+3)-(p-1)=p+3-p+1=4

third term=31-1

t =a+2d

³

31-1 =p-1 +2x4

30= p-1+8

30-8=p-1

22+1=p

p=23