#4. Let L be the line containing the vector 4 onto L. (use the formula: proj L (x) = (x · u) u, where u is contained in L, ||u|| = 1) x = #5. Find the reflection of about the line L in the direction of the vector 0 E (Use the formula ref ₁x = 2 (xu) u – x, where u is contained in L, ||u|| = 1) [31/25 [31/25] (A) 31/25 13/25 17/25 (B) pr[3]. Find the orthogonal projection of the vector -17/25 (C) -31/25 -17/25 (D) 17/25 (E) None of the above

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