About life ...
University of Texas hands down Rice University is the hardest
Now that is a HARD question!
E = mc2
Whats the Cure to all diseases?
How about I tell you the first? ,Well the worlds first hardest math equation is the; P=NP equation. You should concider taking a look at it. Pretty tricky stuff!
Physics during your senior year
e=mc2 just a guess
Depends whats hard for you.
One equation is Force/acceleration=mass
1+1=2
Fermat's Last Theorem