Thread: Differentiation + range help needed

y=ln(2 + e^tan(x)). Give the domain of y and find dy/dx

Thanks in advance

Originally Posted by nubshat

y=ln(2 + e^tan(x)). Give the domain of y and find dy/dx

Thanks in advance

The doman of the natural log is

The exponential function is always non negative so this gives




The domain of the natural logarithm is positive real numbers.

so the domain must be all real numbers.



Can you finish from here?

Yes thank you very much

Originally Posted by nubshat

Yes thank you very much

Don't forget that you still must exclude the "bad points" of