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(3) 9. (a) Let (21,91,2), B(22,92,-2),(3,3,3) be three non-collinear points in that is, three points which...
9. (a) Let P1(21, 91, zı), P2 (22, 42, z2),P3 (13, 93, 23) be three non-collinear points in R, that is, three points which do not all lie on a straight line. Then the equations of the plane through these three points is: 2 y 21 1 = 0 22 Y2 22 1 2 1 2141 I3 Y3 23 1 Page 1 (b) Find the equation of the plane through P1(1,2,2), P2(1, 2, -1), P3(0,1,2)
Suppose that A, B, C are three non-collinear points in a plane. Show that there exists a circle that passes through all 3. ($16.4, # 2)
Let A, B, C be three collinear points and let D, E, F be the midpoints of segments AB, BC, and AC, respectively. Prove that the segments DE and BF have the same midpoint. Let d be a line and let A, B, C be three points not on d. Prove that if d does not separate points A and B and it does not separate points B and C, then it does not separate points A and C.
Combination 7. Ten points lie in a plane, no three of which are collinear. How many lines can be drawn using these points ? How many triangles can be drawn using the vertices chosen from these points? a. b.
In this problem, let li be the line that passes through the points A(1,2, 4) and B(-1,3,8), and let l2 be the line with symmetric equations x +1 = 2y = 32 — 3. Parts (e) and (f) relate to the vector field F = (xy, xz, yz). (a) Show that the lines li and l2 intersect. (b) Let P be the plane that contains both lines li and lz. Find an equation for P. (c) Show that the points...
Let OAB be a triangle, that is, 0, A and B are not collinear. Now let R and S be the mid-points of the sides AB and OA respectively and let M be the point of intersection of the line segments OR and BS. (a) Express the vector OS as a linear combination of OA and OB. (b) Express the vector OR as a linear combination of OA and OB. (c) Give the vector equation of the line through O...
Let A, B, and C be three collinear points s.t. A*B*C. Prove each of the follow set equalities. I'm really having trouble applying theorems like the ruler placement postulate or betweenness theorem to help prove these. 24. Let A, B, and C be three collinear points such that A * B * C. Prove each of the following set equalities. (a) BÁ U BỎ "АС (b) BA n BC {B} (c) ABU BC AC (d) AB n BC {B} (e)...
(1) Assume the axioms of metric geometry. Let A, B, C, D be distinct collinear points. Let f : l → R be a coordinate function for the line l that crosses all of A, B, C, D. Suppose f(A) < f(B) < f(C) < f(D). Prove that AD = AB ∪ BC ∪ CD. (2) Assume the axioms of metric geometry. Let A, B, C, D be distinct collinear points. Suppose A ∗ B ∗ C and B ∗...
Question 4 6-69) Consider the following three points: a-0 b-3and c-1 a) Find the parametric vector equation of the plane which passes through these three [3 marks] b) Find the vector cartesian equation of the plane passing through the three points listed [2 marks] c) Hence, or otherwise, find the non-vector cartesian equation of the plane passing through 3 marks] points above. the points above. Question 4 6-69) Consider the following three points: a-0 b-3and c-1 a) Find the parametric...
5. (a) Let u 1,4,2), ,1,0). Find the orthogonal projection of u on v (b) Letu ,1,0), u(0,1,1), (10,1). Find scalars c,,s such that 6. (a) Find the area of the triangle with vertices , (2,0,1), (3, 1,2). Find a vector orthogonal to the plane of the triangle. (b)) Find the distance between the point (1,5) and the line 2r -5y1 (i) Find the equation of the plane containing the points (1,2, 1), (2,1, 1), (1, 1,2). 7. (a) Let...