I can't help u with this but I can give the formula tn=t1+(n-1)+d
–3.2 < x < –2.4
1.6 < x < 2.4
has critical points where :
where is any integer. We get solutions in the interval for , for which .
At this critical point, we have .
At the endpoints of the given interval, we have and .
So we have the extreme values