Question

if b-1,b+3 and 3b-1 are ap find b ​

Answer 1

Answer:

b- b -3b

1 +3+ 1

(a-b) (a+b)

Answer 2

Answer:

b = 4

Step-by-step explanation:

if they are in ap their common difference will be same.

so,

(b+3) - (b-1) = (3b-1) - (b+3)

b+3-b+1 = 3b - 1 -b -3

4 = 2b - 4

2b = 8

b = 4.

Mark brainliest.