Gibson Stewart
09/08/2023 · Junior High School
e \( \vec{v}=(3,4, x) \). 6) Dizemos que os vetores \( \vec{u}, \vec{v} \) e \( \vec{w} \) em \( \mathbb{R}^{3} \) são coplanares quando o seu pr misto é nulo, isto é, \( \vec{u} \cdot(\vec{v} \times \vec{w})=0 \). Determine o valor \( x \in \mathbb{R} \) a fim de qu \( (1, x, 1), \vec{v}=(2,3,3 x) \) e \( \vec{w}=(3,5,7) \) sejam coplanares. 7) Encontre a equação simétrica e as equações paramétricas da reta que cont
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Para que os vetores \( \vec{u} = (1, x, 1) \), \( \vec{v} = (2, 3, 3x) \) e \( \vec{w} = (3, 5, 7) \) sejam coplanares, \( x \) deve ser \( 2 \) ou \( \frac{11}{9} \).
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