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If the vector bar(i)-bar(j)+bar(k) bisec...

If the vector `bar(i)-bar(j)+bar(k)` bisects the angle between the vector `bar(a)` and the vector `4bar(i)+3bar(j)`, then the unit vector in the direction of `bar(a)` is `(xbar(i)+ybar(j)+zbar(k))` then x-15y+5z is equal to

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