The SUMIFS function.
-16
Any number adds to 15.
1,956 different numbers can be made from 6 digits. You can calculate this by using the permutation function in a summation function, like this: Σ6k=1 6Pk = 6P1+6P2+...+6P5+6P6 What this does is calculate how many 1 digit numbers you can make from 6 digits, then how many 2 digit numbers can be made from 6 digits and adds the amounts together, then calculates how many 3 digit numbers can be made and adds that on as well etc.
If you mean what are the various ways of representing a function? Then I'd suggest you ponder over the definition of a function at first. I think of functions as abstract entities that accept inputs and give a single output for every such input. Going off of this definition, various ways of representing a function are: 1) Explicit formula: This relates the output of a function to the input. i.e it tells you what exactly the function does to the input. eg. f(x) = x +2 tells you the function adds 2 to the input value. 2) The graph of a function: This gives you a good idea of how the function behaves in it's entire domain (the set of inputs for which the output is defined and real). 3) A table of inputs and outputs. 4) Verbal description of a function
First it adds by 3. Then on 4, 8, 12 it adds by 4. On 5 and 10 it adds by 5. So i guess it is 3, 4, 5.
Sum Function
It sounds like you are asking about the SUMIF function. SUMIF adds all numbers in a range of cells, based on a given criteria.=SUMIF(range,criteria,sum_range)range = range of cells that you want to apply the criteria against.criteria = determines which cells to add.sum_range = range of cells to sum.
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SUM
The AVERAGE function.
Syntax is very important when writing Excel formulas. Each formula and function will help guide you through how to format the equation. Probably the most important thing to remember about syntax is to begin all formulas with the equal sign, or Excel will just interpret your entry as text and not calculate anything.EXAMPLE: =SUM(A1:A12) [Adds the contents of cells A1 through A2]
SUM function
Average function
it adds up all the entries in a row or column.
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accent