Question

यदि a,a - 5,3a A.P. में हो तो a =

Answer 1

Answer:

-5

Step-by-step explanation:

a-5=(a+3a)/2

a-5=2a

a=-5

Answer 2

Answer:

a = -5

Step-by-step explanation:

common difference in AP are equal

d = a2 - a1 = a3 - a2

a1 = a

a2 = a - 5

a3 = 3a

(a - 5) - a = 3a - (a - 5)

a - 5 - a = 3a - a + 5

- 5 = 2a + 5

2a = - 5 - 5

2a = - 10

a = -10/2

a = - 5

the AP will be

a1 = a = - 5

a2 = a - 5 = - 5 - 5 = - 10

a3 = 3a = 3(-5) = - 15

-5, -10, -15

hope you get your answer