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1/(1)(2) , 1/(2)(3) , 1/(3)(4)

the nth term of a sequence is 1/n(n+1) which is equal to 1/n - 1/(n-1). what is the sum of the first 50 terms of the sequence?

a) 1
b) 50/51
c) 49/50
d) 24/50
e) 1/(50)(51)  






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