Please solve RD Sharma class 12 Chapter Functions exercise 2.1 question 8 sub question (i) maths textbook solution.
f is not bijective.
, given by
Here we have to show that the given function is one-one and onto.
Let and be any two elements in the domain A, such that
So,f is one-one.
Let y be any element in the codomain A, such that for some element x in domain A
, which may not be in A=[-1, 1]
So f is not onto.
Hence,f is not bijective.