What is the sign of 3x y3xy3, x, y when x>0x>0x, is greater than, 0 and y<0y<0y, is less than, 0?
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The magnitude of vector (-7,-5) =
=
<span>vector as the sum of unit vectors = -7 i - 5 j</span>
=
<span>vector as the sum of unit vectors = -7 i - 5 j</span>