Dhivya Dharshini Asked a Question
October 9, 2020 10:11 ampts 30 pts
o2n+2 The sum of the series 5n- 7n- 1. n=1 2 The value of the series 2h-2+3+1 is 4
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  • Vishal goswami
    any doubt?
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    Dhivya Dharshini
    no
  • Vishal goswami Best Answer
    see attachment
    • cropped594519869908082137.jpg
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  • Vishal goswami thankyou
    see attachment
    • cropped4340767367306872506.jpg
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    Dhivya Dharshini
    But the ans for 2nd one is 12.5.How?
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