Determine which of the following are homomorphisms. Justify your answers. 1 0 (a) o: R→ GL2(R) defined by ø(a) %3D a a b (b) ø: GL2(R) → R² defined by ø = ab. c d :)- a (c) ø: GL2(R) → R* defined by o(| ad – bc. %3D

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Chapter2: Second-order Linear Odes
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Determine which of the following are homomorphisms. Justify your answers.
1 0
(a) o : R→ GL2(R) defined by ø(a)
a
1
a
b
(b) : GL2(R) → R" defined by ø
= ab.
d
a
(c) ¢: GL2(R) → R" defined by ø
= ad – bc.
c d
Transcribed Image Text:Determine which of the following are homomorphisms. Justify your answers. 1 0 (a) o : R→ GL2(R) defined by ø(a) a 1 a b (b) : GL2(R) → R" defined by ø = ab. d a (c) ¢: GL2(R) → R" defined by ø = ad – bc. c d
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