How do you use this symbol in an equation? #in#

Answer 1

To use a symbol in an equation, simply place it where it's needed according to the mathematical operation being performed. Ensure the symbol is appropriately placed and follows the rules of mathematical notation.

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Answer 2

See below:

The symbol #in# means that something (called an element) lies within a set.

For example, I could use it to write something like: *There is a kitchen within the set of rooms in my house.

#"kitchen"in {"rooms in my house"}#
While the symbol #in# shows up for set operations, we can use it for other things. For instance, let's say we want to create an equation where the value(s) we're putting in need to be a certain type of value.

For instance, what if I want to have an equation that tells me how much it will cost to talk to a lawyer. The lawyer charges $100/hour, and so I can write:

#"Cost of lawyer"="number of hours" xx $100#

as well as adding some symbols, I could write it as:

#C=$100h#
We don't want to deal with fractional hours - we only want the natural numbers, so to limit the type of number we substitute in for #h#, we can say:
#C=$100h; h in NN#
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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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