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Do you know why sin(X)=X at X limit tense to Zero or when X becomes very small?


Here I would like to  answer this question graphically,
 this is y=sin(X) graph



 Here blue line indicates y=x curve
         Red curve Indicates y= sin(x)



by comparing both curves in one frame we can clearly understand the value of y-axis will become equal for a certain range. Beyond that, the value far differs as we can see from the graph.
 That is why we can wright sin(x)=x @ x tends to zero.

conclusion 


hence prove lim sinx/x=1 @x tends to 0








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