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Grade 11Algebra

Please answer the question in detail
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Profile image of ABC
7 Years agoGrade 11
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1 Answer

Profile image of Aditya Gupta
7 Years ago
we can write it as 
1+∑(2n+1)/n!, n ranging from 1 to infinity
or 1+∑2/(n-1)!+∑1/n!
but 1+∑1/n! n from 1 to inf is equal to e
so we have
e+2e
= 3e