so i was working with an integral and I have something like this

$\displaystyle \frac{x^2}{1+x^4} \int_{2}^{\sin{x}} dt + \frac{1}{1+x^4} \int_{2}^{\sin{x}} \cos{t^7} dt$

my question is does $\displaystyle \int_{2}^{\sin{x}} dt$ = 0? because its like taking the area under the curve of nothing?