I've figured out how to solve this assuming a derivative exists, but I'm supposed to solve it without derivative and then prove it has at least one point.
#How to solve without derivative?
empty helm
drowsy nightBOT
empty helm
this is what I did assuming a derivative
y=1
set derivative f(2x)=ff(x)
set y=0
f(0)-f(x)=x^2
I've also tried integrating into using derivatives, which is the swapped order
polar drift
try x = 0 y = t, and x = t, y = 0
empty helm
try x = 0 y = t, and x = t, y = 0
how would this help?
could you explain/show your reasoning? :0
polar drift
i just try to get neat eqns
empty helm
I don't think it helps