Find the vector projv u. v=3j, u = 41+3k m2 QUESTION 20 Find the center and...

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Find the vector projv u. v=3j, u = 41+3k m2 QUESTION 20 Find the center and radius of the sphere. O + (x+4)2 + (y + 5)2 + (z+ 9) 2² = O O C(4, 5, 9), a = ¹ C(4, 5, 9), a = Oc(-4,-5, -9), a = C(4, -5, -9), a = QUESTION 21 Find the distance between points P₁ and P2- P 1(8,-5, -6) and P 2(11, -10,-2) 25 50 5√2; 10 Find the vector projv u. v=3j, u = 41+3k m2 QUESTION 20 Find the center and radius of the sphere. O + (x+4)2 + (y + 5)2 + (z+ 9) 2² = O O C(4, 5, 9), a = ¹ C(4, 5, 9), a = Oc(-4,-5, -9), a = C(4, -5, -9), a = QUESTION 21 Find the distance between points P₁ and P2- P 1(8,-5, -6) and P 2(11, -10,-2) 25 50 5√2; 10