Question

1.
If f:R → R defined by f(x) = x°-1, then f (-2,0,7) is​

Answer 1

Step-by-step explanation:

f is invertible throughout R

∴f(x)=x

3

−1=y

⇒x=

3

y+1

=f

−1

(y)

∴f

−1

(−2)=−1

f

−1

(0)=1

f

−1

(7)=2

∴f

−1

{−2,0,7}={−1,1,2}