(Solved): could some one explain and help me with this. 7. Consider the vectors, v1=121,v2= ...
could some one explain and help me with this.
7. Consider the vectors, v1?=?12?1??,v2?=?151??,v3?=?1?1?3??,v4?=?21?4??. Note: The matrix formed from them can be row-reduced to RREF as follows: ?12?1?151?1?1?3?21?4????100?010?2?10?3?10?? (a) Are v1?,v2?,v3? and v4? linearly independent? If yes, then explain why they are independent. If no, then give a linear relation among them. (b) Is v3? in the span of v1? and v2? ? If yes, then write v3? in terms of v1? and v2?. If no, then explain why v3? is not in the span of v1? and v2?. (c) Describe the span of {v1?,v2?,v3?,v4?} geometrically. Be as specific as possible in your description.