CBSE Class 12-science Answered
Plz answer 5th sum
Asked by lovemaan5500 | 02 Dec, 2019, 04:15: PM
Expert Answer
f(x1)=4x1+3
f(x2)=4x2+3
4x1+3 = 4x2+3
x1=x2
hence one-one
f(x)=y
y= 4x+3
x=(y-3)/4
so there exists a value of x which is natural no. for every y
hence
Onto
the function is one one and onto so invertible
x=(y-3)/4
f-1(x)=(x-3)/4
Answered by Arun | 03 Dec, 2019, 10:27: AM
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