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- If V=R\power{3}, and W\index{1} is the xy plane and let W\index{2} is yz-plane: W\index{1}={(x,y,0):x,y∈R} W\index{2}={(0,y,z):y,z∈R} then V is not the direct sum of W\index{1} and W\index{2}.Show that every plane through the origin in R3 may be identified with the null space of a vector in (R3)∗. State an analogous result for R2.Prove that if {y1,...,yn} is an orthogonal set of nonzero vectors, then the vectors {x1,...,xn} derived from the Gram-Schmidt process satisfy xi=yi for i=1,..,n.
- The vector a in 3-space of length 3 lying in the yz-plane pointing upward at an angle of 5π/6 me&sured from the positive y-axis. V = _i+ _ j+_kFind a basis for the set of vectors in R^3 in the plane 3x - 2y + z = 0. Also state the dimension.Consider P4 be a set of all the point on a plane through the origin in R4. The general equation of aplane through the origin in R4 is as follow:aw + bx + cy + dz = 0,where a, b, c, and d are fixed constant and at least one is not zero. Show that P4 with the standardaddition and scalar multiplication is a vector space.
- In V=R3 Let W1 be the xy-plane and let W2 be the z-zxis: W1={(x,y,0):x,y∈R} and W2={(0,0,z):z∈R} Show thatShow that except in degen-erate cases, (u * v) * w lies in the plane of u and v, whereas u * (v * w) lies in the plane of v and w. What are the degenerate cases?4. Find a basis for the vector space T, and state its dimension: T = Intersection of the plane 3x - 2y + 5z = 0 witht he plane x -y = 0 in R3
- Evaluate the least distance of the plane below from the origin in Euclidean space : x−2y+2z=5x−2y+2z=5 Select one: 2/3 4/3 7/3 5/3(a) Prove that u + vand u - v are orthogonal in IR" if and only if ||u|| = ||v||. (b) Draw a diagram showing u, v, u + v, and u - v in IR2 and use (a) to deduce a result about parallelograms.2-What is the size of the vector space consisting of polynomials of degree not exceeding n? A) 0 B) 2n+1 C) n-1 D) n+1 E) n