Question

limit of (sin12x/(sin7x)

Answer 1

(Assume x tends to 0)
\[\begin{array}{cl}
&\lim_{x\rightarrow0}\frac{\sin12x}{\sin7x}\\
=&\lim_{x\rightarrow0}\frac{12\cos12x}{7\cos7x}\\
=&\frac{12\cos0}{7\cos0}\\
=&\frac{12}7
\end{array}\]