If \( x+y=10 \), then the maximum value of \( x y \) is
\( \mathrm{... VIDEO
If \( x+y=10 \), then the maximum value of \( x y \) is
\( \mathrm{P} \)
(A) 5
(B) 20
W.
(C) 25
(D) None of these
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