Question:
Mark (√) against the correct answer in the following:
Let $f(x)=x^{2}$. Then, dom (f) and range (f) are respectively.
A. $R$ and $R$
B. $R^{+}$and $R^{+}$
C. $R$ and $R$ +
D. $R$ and $R-\{0\}$
Solution:
According to sketched graph of $x^{2}$
Domain of $f(x)=R$
And Range of $f(x)=R^{+}$