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Write the values of a and b, for which t...

Write the values of a and b, for which the vectors `(a-1)hat(i) + (b+2)hat(j) + 4hat(k)` and `(a+1)hat(i) + (b-2)hat(j) + 8hat(k)` will be parallel.

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The correct Answer is:
a = 3 and b = -6
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