IIT JAM
Madhu Asked a Question
April 24, 2020 10:42 ampts 30 pts
  • IIT JAM
  • Mathematics (MA)

How did this step come??

how did this step come?? the underlined one...??pls do solve and say ..
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  • Lov kumar thankyou
    see attachment
    • cropped4587381427925468280.jpg
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