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Indian Navy AA (Artificer Apprentice) Relations and Functions — practice questions

3 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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If $f(x)=x^2+1$, then $f(2)$ equals:Which of the following sets of ordered pairs represents a function?The function $f:\mathbb{R}\to\mathbb{R}$ given by $f(x) = x^2$ is: