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Notes On Solution For Math Problem

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Published in: Aeronautical | Mathematics
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How to find the sum of n terms of arithmetic progression

Mohammad T / Lucknow

13 years of teaching experience

Qualification: B.Sc (Dr Ram Manohar Lohia Avadh University , Faizabad - 1995)

Teaches: All Subjects, EVS, Mathematics, Science, Algebra, Physics

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  1. Question-- Find the sum of 20 terms of the arithmetic progression whose 10th term is 32 and first term is 5
  2. Solution s=5 a =32 n=10 32ā€”5= 9d 27=9d 27 =d 9 3=d d=3 again a=5 d=3 n=20 we want to find S 20 we know S =2a+(nā€”1)d 20 = 10+57 S = 67 Ans 20

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