CBSE Class 12 Sample Paper for 2021 Boards

CBSE Class 12 Sample Paper for 2020 Boards →
Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Question 1 (Choice 1) - CBSE Class 12 Sample Paper for 2021 Boards - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at December 16, 2024 by

Check whether the function š‘“: š‘… ā†’ š‘… defined as š‘“(š‘„) = š‘„3 is one-one or not.

Check whether the function defined as f(x) = x^3 is one-one or not

Question 1 (Choice 1) - CBSE Class 12 Sample Paper for 2021 Boards - Part 2

Ā 

Remove Ads Share on WhatsApp

Transcript

Question 1 (Choice 1) Check whether the function š‘“: š‘… ā†’ š‘… defined as š‘“(š‘„) = š‘„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 āˆ“ x1 = x2 Since if f(x1) = f(x2) , then x1 = x2 āˆ“ It is one-one

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo