If a- -4- then a- - 2- -3k- is equal to

The correct option is D 12 ( a⃗×ĵ #160;) ·( 2ĵ 3k̂ #160;) =a⃗·{ĵ×( 2ĵ 3k̂ #160;) #160;} #160; #160; #160; #160; #160; # ...

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Applications of Cross Product

If a⃗·î =4,...

Question

If $\to a \cdot^i = 4$ , then $(\to a \times^j) \cdot (2^j - 3^k)$ is equal to

12

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Solution

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Similar questions

\to a .^i = 4

(\to a \times^j) . (2^j - 3^k) =

\to a \cdot^i = \to a \cdot (^i +^j) = \to a \cdot (^i +^j +^k) = 1

\to a =

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

\to b = 2^i -^j +^k

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

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

x \to a + y \to b + z \to c

x + y + z

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

\to b = -^i + 2^j +^k

\to c = 3^i +^j

\to a + t \to b

\to c

t

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