cos=cos
sin=sin
tan=[tex]\frac{sin}{cos}[/tex]
The equation is:
cos tan=sin
Since there are no operations in the middle, we can classify it as multiplication. Now, tan is sin over cos, so substitute:
[tex]cos(\frac{sin}{cos})=sin[/tex]
Since you will multiply the cos to tan, the cos will be canceled.
sin=sin
Hope this helps =)
