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Sigma Notation and the nth Term
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Sigma Notation and the nth Term

Sigma Notation and the nth Term-example-1
User Ewe Tek Min
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1 Answer

5 votes

Answer: F

Explanation:

1+2+...+n = n*(n+1)/2 for all natural numbers n.

Left-hand-side = (5+1)+(5+2)+...+(5+10)=5*10+10*(10+1)/2=50+55=105

Right-hand-side = (4)+(4+1)+...+(4+9)=4*10+9*(9+1)/2=40+45=85

105≠85

The equation is false

User Nilesh Tupe
by
7.9k points
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