During the early days of mathematical expressions the Greeks needed a shorthand form of representing the summation of several terms hence the choice of ∑ as a sigma Notation.
Step-by-step explanation:
The summation symbol ∑ is the upper case equivalent of capital S in Greek and S represents sum in English.
During the early days of mathematical expressions the Greeks needed a shorthand form of representing the summation of several terms hence the choice of ∑ as a sigma Notation.
Never. If you rent one hour the difference will be $12 - $10 =$2, if your rent for 2 hours, the difference will be $24 - $20 = $4, and so the difference will grow as the number of hours increase.
