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Relations And Functions Exercise 3(c) Question 1. Give an example of a relation that is not a function. Odisha Board Solutions .com Answer : Let the relation ‘f’ be defined from A = {1, 2, 3} to B = {1, 2} as f = {(1, 1), (1, 2), (2, 1), (3, 2)} f is not a function because f (1) = 1, f(1) = 2 but 1 ± 2 i.e. f is one many. Question 2. If X and Y are sets containing m and n elements respectively then what is the total number of functions from X to Y? Odisha Board Solutions .com Answer : If |X| = m and |Y| = n then the number of functions from X to Y = |Y| |X| = n m Question 3. Find the domain of the following functions: (i)\( \sqrt{9-x^2}\) Odisha Board Solutions .com Answer : y = f(x) = \(\sqrt{9-x^2}\) Clearly, f(x) is well-defined for 9 – x 2 ≥ 0 ⇒ x 2 ≤ 3 2 ⇒ – 3 ≤ x ≤ 3 ∴ dom f = [ – 3, 3] (ii) \(\frac{x}{1+x}\) Odisha Board Solutions .com Answer : y = f(x) = \(\frac{x}{1+x}\) f(x) is well defined for all x ∈ R ∴ ...
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सामान्य ज्ञान पर प्रश्नोत्तरी Quiz Lets try It Question of Save & Next Good Try! अच्छा प्रयास। आपने मे से प्रशं सही किए है! आपने अंक प्राप्त किए है । TryAgain
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सामान्य ज्ञान पर प्रश्नोत्तरी Quiz Lets try It Question of Save & Next Good Try! अच्छा प्रयास। आपने मे से प्रशं सही किए है! आपने अंक प्राप्त किए है । TryAgain