9. Let W be the union of the first and third quadrants of the XY- plane, That is W = 1 : xy 2 0 a. If u is in W, and c i
Posted: Mon May 09, 2022 11:13 am
9. Let W be the union of the first and third quadrants of the XY- plane, That is W = 1 : xy 2 0 a. If u is in W, and c is any scalar, is cu in W? Why? b. Find 2 vectors u and v in W such that u + v is not in W