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Unformatted text preview: Practice Hour Exam #2 Solutions Math 115A Section 3 NAME: SOLUTIONS SCORES: 1. / 20 2. / 20 3. / 10 4. / 15 5. / 20 6. / 15 Total: / 100 SIGNATURE: I hereby swear that in taking this exam I have adhered to all of the universitys rules on academic integrity. Problem 1 (20 points  5 points each) (a) Suppose T : V V is a linear operator. Define what it means for a vector from V to be an eigenvector of T . v V is an eigenvector of T if v 6 = ~ 0 and there is a scalar F such that T ( v ) = v . (b) Suppose T : V V is a linear operator and is an eigenvalue of T . Define the geometric multiplicity of . The geometric multiplicity of is the dimension of the eigenspace E ( T ) = N ( T I V ). (c) Define what it means for two n n matrices to be similar . If A and B are n n matrices, then A and B are similar if there exists an invertible n n matrix Q such that B = Q 1 AQ . (d) Define what it means for two vector spaces to be isomorphic . Vector spaces V and W are isomorphic if there exists an invertible linear trans formation (or isomorphism) T : V W . Problem 2 (20 points  5 points each) For each of the following statements, determine if they are true or false. If they are true, prove them. If they arethem....
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This note was uploaded on 02/02/2012 for the course MATH 115A 262398211 taught by Professor Fuckhead during the Spring '10 term at UCLA.
 Spring '10
 FUCKHEAD

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