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Indian Navy Pilot Sets, Relations and Functions — practice questions

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

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Function f: A → B is onto (surjective) if:Function f(x) = (x-1)/(x+2) on R - {-2}. f is bijection from R - {-2} to R - {?}:For function f(x) = ax + b (a ≠ 0), inverse is:If $|A| = 3$ and $|B| = 4$, the number of elements in $A \times B$ is: