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Question
State which of the following statement is True or False.
If xy > 0, then x > 0 and y < 0
Options
True
False
Solution
This statement is False.
Explanation:
If x, y > 0 then x > 0, y > 0 or x < 0, y < 0.
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Graph of x ≥ 0 is
Graph of y ≤ 0 is
Solution set of x + y ≥ 0 is