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List all the subsets of the following se...

List all the subsets of the following sets.
(i) B={p,q} (ii) C={x,y,z} (iii) D={a,b,c,d} (iv) E=1,4,9,16} (v) F={10,100,1000}

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The correct Answer is:
(i) {p}, {q}, {p,q}, `{phi}`
(ii) `{x}, {y}, {z], {x,y}, {y,z}, {z,x}, {x,y,z}, phi`
(iii) {a}, {b}, {c}, {d}, {a,b}, {b,c}, {c,d}, {a,c}, {a,d}, {b,d}, {b,d}, {a,b,c}, {b,c,d}, {a,b,d}, {a,c,d}, {a,b,c,d}, `phi`
(iv) `phi`, {1}, {4}, {9}, {16}, {1,4}, {1,9}, {1,16}, {4,9}, {4,16}, {9,16}, {1,4,9}, {1,9,16}, {4,9,16}, {1,4,16}, {1,4,9,16}.
(v) `phi`, {10}, {100}, {1000}, {10,100}, {100,1000}, {10,1000}, {10,100,1000}`
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