What is the difference between dashes and brackets? Why use brackets over dashes?

Answer 1

Brackets are most commonly used to immediately describe a word or thought inside a sentence, while dashes are used to introduce or emphasize a new thought into a sentence to clarify its intent.

This idea can be best explained by example;

"To install the new circuit you will need to cut the positive (red) wire - be careful not to cut any other wires - leading to the power supply."

The #red# identifies the wire precisely and the embedded warning is highlighted with the use of dashes.
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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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