Here's the question you clicked on:
Requiem
find the limit of sin(x) as x approaches zero
Evaulate sin(x) for x = 0 to get the limit.
lim X tends to zero = zero as f(X)=sin(X) then f(0) = zero so the function is defined at x=zero and its value is zero
Plug 0 in for x, then solve for sin(0) = )