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f:A→ B such that f(x) = ^{7-x}P_{x-3} is onto then the set B is (1) \{3,4,5\} (2) \{1,3\} (3) \{1,2,3\} (4) R |
| Answer» f:A→ B such that f(x) = ^{7-x}P_{x-3} is onto then the set B is (1) \{3,4,5\} (2) \{1,3\} (3) \{1,2,3\} (4) R | |