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Class 12 Relations And Functions · Mcq Single Correct1 Markstypes_of_functions

Class 12 Maths · Relations And Functions · Mcq Single Correct #79

Let \(f:\mathbb R\to\mathbb R\), \(f(x)=x^2+1\). The preimage sets of 5 and -5, respectively, are

✅ Step-by-Step Solution

Final Answer: Option (C): \(\{-2,2\},\varnothing\)
  1. x^2+1=5 gives x=+/-2. The equation x^2+1=-5 has no real solution.

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