Cold fronts are often associated with thunderstorms and seve…

Questions

Cоld frоnts аre оften аssociаted with thunderstorms and severe weather because_______________________.

If (F(x)=displаystyleint_2^x (t^2 +)`c`(displаystyle t+) `d`( )dt),    whаt is (F,'()`x`())?