If a-2-3k- b-3-2-k- c-4k- d-2-k- then a-b-c-d-

The correct option is C 24 (î+ĵ 2k̂) a×b =(2i+j+3k)× (3i+2j+k ) = 5i+7j+k ...(i) c×d =(i j 4k)×(i+2j k) =9i 3j+3k ...(ii) ...

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Addition and Subtraction in Unit Vector Notation

If a⃗=2î+ĵ+...

Question

If $\to a = 2^i +^j + 3^k$ , $\to b = 3^i + 2^j +^k$ , $\to c =^i -^j - 4^k$ , $\to d =^i + 2^j -^k$ , then $(\to a \times \to b) \times (\to c \times \to d) =$

24 (^i +^j - 2^k)

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24 (^i -^j -^k)

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12 (2^i +^j - 3^k)

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12 (^i - 2^j + 3^k)

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Solution

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Similar questions

\to a \cdot (\to b \times \to c)

\to a = 2^i +^j + 3^k, \to b = -^i + 2^j +^k

\to c = 3^i +^j + 2^k .

\to a = 2^i +^j + 3^k, \to b = -^i + 2^j +^k

\to c = 3^i +^j + 2^k

\to a \cdot (\to b \times \to c)

\to a = 3^i - 2^j +^k,

\to b = 2^i - 4^j - 3^k, \to c = -^i + 2^j + 2^k

\to a + \to b + \to c = 4^i - 4^j

\to a =^i -^j + 2^k, \to b = 2^i + 3^j +^k, \to c =^i -^k

\to a + 2 \to b - 3 \to c

\sqrt{78}

\to a =^i +^j +^k, \to b =^i +^j -^k

\to c =^i -^j +^k

\to d =^i -^j -^k

(\to a \times \to b) \times (\to c \times \to d) =

\to a, \to b, \to c

\to a =^i + 2^j + 3^k

\to c =^i +^j +^k

\to d = 2^i -^j - 3^k

\to a, \to b

\to c

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