Algebra Archive: Questions from April 17, 2023
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sea u1 = (1,0,-1), u2 = (-2,7,2), u3 = (3,-7,-3) . Muestre que u1,u2,u3 son dependientes lineales.
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Un paralelogramo tiene lados AB, BC, CD y DA. Dado A (1, –1,2), C
(2, 1, 0), y el
punto medio M (1, 0, –3) de AB.
Encuentre el vector BD.
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La siguiente tabla muestra la distribución de probabilidad para una
variable aleatoria discreta. (13 va con 0,07, 16 con 0,21,
etc.)
×13 16 18 21 23 25 26 31
p(x) 0,07 0,21 0,17 0,25 0,05 0,04 0,13
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