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Is this true ?
http://www.newsweek.com/how-will-world-end-another-doomsday-looms-here-what-could-actually-bring-714437? For the curve given by r(t)=⟨7t,3t,1+4t2⟩
Find the curvature at t=1
k(t)=? ,? Show that the equation 2^x=1/x has a root on [0,1]? For what value of x is line a parallel to line b? Will give best answer!? How long would it take for an adult male grizzly bear to subdue an adult human male?