Series Sum Relation (Jee Mains) | ExamDuo
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Series Sum Relation
Let A be the sum of the first 20 terms and B be the sum of the first 40 terms of the series 1² + 2.2² + 3² + 2.4² + 5² + 2.6² + …..............
If B – 2A = 100 λ, then λ is equal to :
SELECT ONE OPTION
A
248
B
464
C
496
D
232
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