What does the symbol for factorial function (n!) mean?
a.
It means to divide a series of descending natural numbers.
c.
It means to divide a series of ascending natural numbers.
b.
It means to multiply a series of descending natural numbers.
d.
It means to multiply a series of ascending natural numbers.

It means B and it can also mean D.

Take for example which can be written as in descending order however .

Further reading.

The factorial function where is defined as taking the n-th derivative of exponential function namely,

.

We observe that we approach smaller and smaller values of n and therefore multiply by smaller and smaller natural number while total product increasing since every number we multiply the product with is non-decimal.

Hope this helps.

15 units use socratic

step-by-step explanation: 15 units

∠cbe and ∠deb are same-side interior angles.

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