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Vectors and Scalar

Two vector A=...

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Two vector A=2i+3j-4k and B=4i+8j+xk are such that component of vector B along vector A is zero. Then the value of x I'll be what.

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¯ ¯ ¯ a = 4 ¯ i + 6 ¯ j

¯ ¯ b = 3 ¯ j + 4 ¯ ¯ ¯ k

, then the vector form of the component of

¯ a

¯ b

A = 2 ˆ i + 3 ˆ j

B = ˆ i + ˆ j

. The component of vector A along vector B is

Q. Show that the vectors

2 ˆ i - 3 ˆ j + 4 ˆ k

- 4 ˆ i + 6 ˆ j - 8 ˆ k

Q. Show that the vectors

2 \hat{i} - 3 \hat{j} + 4 \hat{k} and - 4 \hat{i} + 6 \hat{j} - 8 \hat{k}

2 ˆ i - 3 ˆ j + 4 ˆ k

- 4 ˆ i + 6 ˆ j - 8 ˆ k

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