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If a vector (hat 2i+hat 3j+hat 8k) is pe...

If a vector `(hat 2i+hat 3j+hat 8k)` is perpendicular to the vector `(hat 4i-hat 4j+hat alpha k)` ,the value of `alpha` is

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Knowledge Check

  • If a vector 2hat(i)+3hat(j)+8hat(k) is perpendicular to the vector 4hat(j)-4hat(i)+alpha hat(k) . Then the value of alpha is

    A
    -1
    B
    `1/2`
    C
    `-1/2`
    D
    1

  • If a vector 2 hat (i) + 3 hat(j) + 8 hat(k) is perpendicular to the vector - 4 hat(i) + 4 hat(j) + alpha(k) . Then the value of alpha is

    A
    `-1`
    B
    `-(1)/(2)`
    C
    `(1)/(2)`
    D
    `1`

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