(3)> Verify for the following that H < G. (a) G = Z12 and H = { 0, 2, 4, 6, 8, 10 } (based from the operation table) %3D (b) G = Z; and H = { 1, 2, 4 } (argue using the Two-Step Subgroup Test) (c) G = R* and H = { a + bV2 | a, b e Q, and a, b are not both zero } (argue using the One-Step Subgroup Test)

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