What is the value of tan infinity? Share with your friends Share 0 Mohammed Irfan Khan answered this Dear Student there is no answer. If you look at the graph of tan(x) , you will see it is a periodic function, going from positive infinity to negative infinity indefinitely. No matter how large the value of x gets, it will keep repeating this way and never tends to any one value of tanx. Hence, there is no limit. Regards 0 View Full Answer