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Let →a=6→i−3→j−6→k and →d=→i+→j+→k. Suppose that →a=→b+→c where →b is parallel to →d and →c is perpendicular to →d. Then →c is

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Let a=6i3j6k and d=i+j+k. Suppose that a=b+c where b is parallel to d and c is perpendicular to d. Then c is



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