26 verified questions · ~39 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
Let A = {1, 2, 3}. Consider the relation R = {(1, 1), (2, 2), (3, 3), (1, 2), (2, 3), (1, 3)}. Then R is
If f : R → R is defined by f(x) = sin x + x, then f(f(x)) is:
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