Question: Given relations R ( A , B ) and S ( A , B ) . Prove or disprove the following: R . A (

Given relations R(A, B) and S(A, B). Prove or disprove the following:
R.A(R)-R.A(R \cap S)=R.A(R)\cap R.A(R - S)Q.2[12 pts] Given relations R(A, B) and S(A, B). Prove or disprove the following:
prodR.A(R)-prodR.A(RS)=prodR.A(R)prodR.A(R-S)
Given relations R(A, B) and S(A, B). Prove or disprove the

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