| Boolean logic- is an expression that evaluates to true or false with pages that match the search condition. |
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 | What does AND mean? | |
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| Locates pagesthat inclueds both words. | |
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| Boolean logic- is an expression that evaluates to true or false with pages that match the search condition. |
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| What does OR mean? | |
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| it locates pages that includes one word or the other. | |
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| Boolean logic- is an expression that evaluates to true or false with pages that match the search condition. |
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| What does NOT mean? | |
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| It locates pages that include the first word but not the secound. | |
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