Question

5th one please guys ​

Answer 1

Heya

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Let the common Difference be d

d = {(3 - a ) /3a } - {1/a }

d = {( 3 - a ) -3 } / 3a

=>

d = -a/3a

=>

d = 1/3

So, The common Difference is 1/3

Answer 2

3-a/3a - 1/a = 3-2a/3a - 3-a/3a

solve this u get the answer!!!