Let R be a ring and M be an R-module, and let A and B be submodules of M. Then, a) A+B is a submodule of M. b) A x B is a submodule of M x M. c) Both a and b d) Neither a nor b a) b) d)
Let R be a ring and M be an R-module, and let A and B be submodules of M. Then, a) A+B is a submodule of M. b) A x B is a submodule of M x M. c) Both a and b d) Neither a nor b a) b) d)
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter7: Real And Complex Numbers
Section7.2: Complex Numbers And Quaternions
Problem 47E
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