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Answer the following questions: If a real-valued function is given by: is an onto function, then…
Answer the following questions:
(a)
If a real-valued function is given by: $f(x) = \sqrt{25 - x^2}$ is an onto function, then find the co-domain for $f(x)$.
(b)
If the domain is given to be $[-5, 5]$, is $f(x)$ a one-one function?
(c)
Find all possible values of ‘a’ for which $f(a) = 4$.
Answer
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From ISC 2025 Practice Mathematics, question 100.