## Check whether the function π: π β π defined as π(π₯) = π₯3 is one-one or not.

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CBSE Class 12 Sample Paper for 2021 Boards

Question 1 (Choice 1)
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Question 1 (Choice 2) Important

Question 2

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Question 17 (Case Based Question) Important

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Class 12

Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at Oct. 26, 2020 by Teachoo

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Question 1 (Choice 1) Check whether the function π: π β π defined as π(π₯) = π₯3 is one-one or not. f(x) = x3 Checking one-one f(x1) = (x1)3 f(x2) = (x2)3 Thus, f (x1) = f (x2) (x1)3 = (x2)3 β΄ x1 = x2 Since if f(x1) = f(x2) , then x1 = x2 β΄ It is one-one