If a-3-4-5k- then -a-a-k-a-k-

The correct option is C 10√(2) We have, #160; |î×(a⃗×î)+ĵ×(â×ĵ)+k̂×(â×k̂) | =3â a_11̂ a_2ĵ a_3k̂ =2a⃗ =2|a⃗| =2×5√(2) =10√ ...

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Basic Differentiation Rule

If a⃗=3î+4ĵ...

Question

If $\to a = 3^i + 4^j - 5^k$ , then $|^i \times (\to a \times^i) +^j \times (\to a \times^j) +^k \times (\to a \times^k) | =$

2 \sqrt{50}

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50 \sqrt{2}

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10 \sqrt{2}

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100 \sqrt{2}

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Solution

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Similar questions

\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) . (\to c \times \to d) | =

\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 a =^i -^j -^k

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

\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) =

^i \times (\to a \times^i) +^j \times (\to a \times^j) +^k \times (\to a \times^k) = 2 \to a

\to a

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