Using the fact that lim x-->0 (sinx/x)=1 to find lim x-->0 ((1-cosx)/xsinx))
That given limit is 1 and we can multiply anything by 1 without changing its
value
The product of limits equals the limit of products as long as they approach
the same number.
The limit of a product equals the product of limits.
In the left parentheses, the limit of a square is a square of the limit.
On the right parentheses, we can substitute what x approaches as long as it
gives a defined value, (not 0/0):
<-- answer
Edwin