What is the key idea of the video?
— The key idea of the video is that when negating an inequality, the sign is flipped and the equal sign is removed.
How should the sign be changed when negating an inequality?
— When negating an inequality, the sign should be flipped.
What happens to the equal sign when negating an inequality?
— When negating an inequality, the equal sign is removed.
Is it necessary to change the sign when negating an inequality?
— Yes, it is necessary to change the sign when negating an inequality.
What is the significance of removing the equal sign when negating an inequality?
— Removing the equal sign when negating an inequality helps to accurately represent the relationship between the two quantities being compared.
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