Determine which of these relations are symmetric. The variables x, y, x', y' represent integers. A. x Ry if and only if x + y is positive. B. x Ry if and only if æ = |y|. O C. x Ry if and only if æy is positive. O D. æ Ry if and only if x – y is positive. O E. x Ry if and only if ry > 0.

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Chapter2: Second-order Linear Odes
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Determine which of these relations are symmetric. The variables x, y, x', y' represent integers.
O A. xRy if and only if æ + y is positive.
O B. x Ry if and only if x = |y|.
O C. x Ry if and only if cy is positive.
OD. xRy if and only if x – y is positive.
E. x Ry if and only if xy > 0.
Transcribed Image Text:Determine which of these relations are symmetric. The variables x, y, x', y' represent integers. O A. xRy if and only if æ + y is positive. O B. x Ry if and only if x = |y|. O C. x Ry if and only if cy is positive. OD. xRy if and only if x – y is positive. E. x Ry if and only if xy > 0.
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