No, this is wrong. You seem to have gotten confused as to exactly what yousubtractingfrom what.

Again wrong. Perhaps it would help to write outCB(5, 8, 3)eachcalculation separately.

The notation is awkward- especially with the line break. I assume you mean(b) Find −→BA − 3

−−→CB.

This is wrong perhaps because you got wrong.(16, 24, 16)

Once you had the first part of the problem wrong, there was no chance of getting these right. If you are not certain, post(c) Use the result of part (b) to write −→BA − 3

−−→CB as a multiple of the vector (8, 0, 9).???DON'T GET THIS PART

(d) Express −−→CB in terms of the standard unit vectors i, j and k.-5i-8j-3k

(e) Use the result of part (a) to ﬁnd −→AC.

(f) Verify the triangle inequality: ||−→AB +

−−→BC|| ≤ ||−→AB|| + ||−−→BC||.

(g) Find a unit vector pointing in the same direction as −→AB.

(h) How far is the point C from the origin?exactlyhow you found and . Perhaps we can point out your error.