the sum of first 15term of the series 1+2+3+......+15
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Answer:
z
Step-by-step explanation:
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Answer:hello... according to the updated syllabus of class 10 sum of AP is deleated
Step-by-step explanation:
S= n/2 (a+l)
=15/2(1+15)
=15/2 × 16 (cut 2 and 16 to get 8)
=15×8
=120.....answer
Hope it helped you
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