This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
divide and multiply the numerator by 6x then divide and multiply the denominator by 5x for tan(5x) and 7x for tan(7x) respectively. for lim x-->0 sin(6x)/6x=1 tan(5x)/5x=1 tan(7x)/7x=1 thus we get (x 6x)/(5x 7x)=6/35