Question

$lim_{x to 0} frac{sinx}{tgx}$

Answer 1

$lim_{x to 0} frac{sinx}{tgx} = lim_{x to 0} frac{sinx}{sinx/cosx} = lim_{x to 0} frac{sinxcosx}{sinx} = lim_{x to 0} cosx = 1$