Function x*tanx

Functions:

f(x)=xtanx
f(x)=(e^x)/((e^x)+1)

Find;
i)vertical and horizontal assyptotes
iii)the interval of decrease and increase
iii)Local maxima and local minima
iv)interval of concavity and inflection.
And sketch the graph.

Correct answer:

min =  0

Step-by-step explanation:

f=x tanx f=tanx+x/cos2(x) f=sinx/cosx+x/cos2(x) f=cosxsinx+x/cosx f=cosxsinx+x/cosx  min=0



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