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Diketahui vektor normal dari bidang $U$ adalah $\\vec{n_1}=[2,3,a]$ dan vektor normal dari bidang $V$ adalah $\\vec{n_2}=[3,-4,\\var{a}]$. Diketahui juga bahwa kedua bidang tersebut saling tegak lurus. Salah satu titik potong kedua bidang tersebut adalah $(\\var{b},\\var{c},4)$.

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Pilihlah pernyataan yang tepat.

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