How do you use ∑?

How do you use ∑?

How do you use ∑?

The symbol ∑ indicates summation and is used as a shorthand notation for the sum of terms that follow a pattern. For example, the sum of the first 4 squared integers, 12+22+32+42, follows a simple pattern: each term is of the form i2, and we add up values from i=1 to i=4.

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  • 2024-02-09 06:28:14
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Is it better to take a lump sum payout or annuity?
If you're really concerned about losing your pension because of the pension provider's financial situation or inability to pay out, taking the lump sum may end up being the more secure option. If your annuity does not have a cost-of-living adjustment, it's purchasing power will decrease over time due to inflation.
2024-03-21 04:39:07


Who solved the sum of three cubes?
But the case of 33 went unsolved for 64 years. Now, Andrew Booker, a mathematician at the University of Bristol, has finally cracked it: He discovered that (8,866,128,975,287,528)³ + (–8,778,405,442,862,239)³ + (–2,736,111,468,807,040)³ = 33.
2024-02-13 08:29:21


What are the odds against rolling a sum of 5?
The probability of getting a sum of 5 on rolling two dice is 1/11.
2024-02-07 05:23:12


Do you get more money with lump sum or annuity?
While an annuity may offer more financial security over a longer period of time, you can invest a lump sum, which could offer you more money down the road. Take the time to weigh your options, and choose the one that's best for your financial situation.
2024-01-21 03:28:27


How do you sum 15 in sudoku 3 by 3?
The magic constant for this example is 15, as 45 / 3 = 15. Add the unused numbers to the open boxes in the magic square so that the rows, columns, and diagonals add up to 15. In the first row: 6 + 8 = 14, the missing number to total 15 is 1. In the third row: 2 + 4 = 6, the missing number to total 15 is 9.
2024-01-02 14:41:03