Mathematics · Functions and Relations
If a function f: &mathbb{Z} → &mathbb{Z} is defined by f(x) = x - (-1)x, then f(x) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1neither one-one nor onto
- 2both one-one and onto✓
- 3onto, but not one-one
- 4one-one, but not onto
Correct answer
both one-one and onto
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