Question: 1. Problem Let f: X - Y and Bo, B1 CY then prove: (a) f* ( Bo U B1) = f*(Bo) Uf* (B1) (b) f*(BonB)

1. Problem Let f: X - Y and Bo, B1 CY then prove:
1. Problem Let f: X - Y and Bo, B1 CY then prove: (a) f* ( Bo U B1) = f*(Bo) Uf* (B1) (b) f*(BonB) = f*(Bo) nf*(B1) (c) f*(Bo) = f*(Bo). (d) f*(Bo - B1) = f*(Bo) - f*(B1) (e) f*(Bo + B1) = f*(Bo) + f*(B1)

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