Question: Only solve question 3 please (d) The projection proju(s). 3. Given |lu|| = 2 and |v| = 7 and u . v = -7 find

Only solve question 3 please

(d) The projection proju(s). 3. Given |lu|| = 2 and |v| = 7 and u . v = -7 find the value of (u + 37) . (u - V). 4. Find the cross product of the two vectors u = (2, 0, 1) and 3 = (1, 2, -1)
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