IIT JAM
Mohan Krishnan Asked a Question
April 14, 2020 7:31 pmpts 30 pts
  • IIT JAM
  • Mathematics (MA)

Explain 3rd and 4th step

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  • Ujjawal vishal thankyou
    in 3rd step they expanded the series with putting n=0,1,2....and in 4th they applied formula for sum of GP of n terms
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