3) Let a = (2,5, -2) and b = (0, 1, 3). Find: a. za - 2b 2 Q = , 2b = , 6 > 's a - ab = = b. The unit vectors of a and b. of a TEL ( 2 - 0) + 15- 1 1 + ( - 2- 3) 14+16+25For all questions, let x = (3, -6, 1) and y = (1, 2, 4) V1) What is the angle between x and y? Fallbicoso 46 coso = anb x 7 ( 46 lallol 92 966 coso = 3- 12+4 - 5 Jabb 19 + 36+1 di+4+16 266 D = arc cos - $906 966 2) Find a vector w that is orthogonal to x by using the dot product formula. 8: 1. 2 ( let 12 = 0 Orthogonal is 0= 4 = 90 COSO= 'S 121181 8 - 1 + Kany vector COST! = such that X - V = 0 orthogonal, Jo . let ic = 0 6 . 1 1 >For all questions, lat? = (3, -6, 1) and 55 = (1, 2, 4) 3) Find a vector i that is orthogonal to hath 3c\" and 5?. ' 3"\" . '.-