If \( x=-y \) and \( y0 \), which of the following is wrong?
W
(a) \( x^{2} y0 \)
(b) \( x+y=0 \... VIDEO
If \( x=-y \) and \( y0 \), which of the following is wrong?
W
(a) \( x^{2} y0 \)
(b) \( x+y=0 \)
(c) \( x y0 \)
(d) \( \frac{1}{x}-\frac{1}{y}=0 \)
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