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Please explain how to do b. And c. Please.

Please explain how to do b. And c. Please.-example-1
User Ngawang
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Answer:

Explanation:

For b. 4 squared is 16 and -4 squared is also 16. They are equal.

For c. the square root of a squared is a; the square root of b squared is b, so the statement "...implies a<b for all real numbers a and b" is true.

User Montoya
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