What is the domain and range of y=ln(x2)?

1 Answer
Apr 9, 2017

Domain for y=ln(x2) is xR but x0, in other words (,0)(0,) and range is (,).

Explanation:

We cannot have logarithm of a number less than or equal to zero. As x2 is always positive, only value not permissible is 0.

Hence domain for y=ln(x2) is xR but x0, in other words (,0)(0,)

but as x0, ln(x2), y can take any value from ao i.e. range is (,).