If a-2-5-8k- b-3-k- c-3-2-k- then find -a-b-c-

If a⃗=2î 5ĵ+8k̂ #160; #160; b⃗=î 3ĵ k̂ #160; #160; c⃗= 3î+2ĵ k̂ #160; #160;_______________________________ ⇒ a⃗+b⃗+c⃗= ...

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Definition of Vector

If a⃗=2î-5ĵ...

Question

If $\to a = 2^i - 5^j + 8^k, \to b =^i - 3^j -^k, \to c = - 3^i - 2^j -^k$ , then find $| \to a + \to b + \to c |$ .

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\to a = 2^i + 5^j + 8^k, \to b =^i + 3^j + 7^k

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

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

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

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

\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

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

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

\to c = - 1^i + 2^j + 2^k

\to a + \to b + \to c =

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