Question

हे फ्रेंड्स प्लीज गिव मी द आंसर इमीडीएटली आई नीड यू वेरी मच ​

Answer 1

Answer:

C. Let first three terms of A.P. be (a-d),a,(a+d)

Then, a-d+a+a+d = 30

3a = 30

a = 10

Now,

(a-d)(a+d) = 75

(a^2- d^2) = 75

(100 - d^2) = 75

- d^2 = -25

d^2 = 25

d = 5, -5

Thus, common difference = 5