Show how you can specify the following relational algebra operations in both tuple and domain relational calculus.
a. σA=C(R(A, B, C))
b. π<A, B>(R(Α, B, C))
c. R(A, B, C) * S(C, D, E)
d. R(A, B, C) ⋃ S(A, B, C)
e. P(A, B, C) ⋂ S(A, B, C)
f. P(A, B, C) = S(A, B, C)
g. R(A, B, C) ×S(D, E, F)
h. P(A, B) ÷ S(A)
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