X=Sin(x)=Tan(x) when X is very small. You can see the same result for all . In this video the value one degree is calculated for all. Please watch for complete details.
What will happen?? Addition of Infinite term. 1+1+1+1+1+1------- till infinity ??? Multiplication of infinite term. 1*1*1*1*1*1---- till infinity??? Watch this video.