(Solved):
4. Given these formulas: - i=1N1=N -i=1Ni=-i=1Ni2=i=1Ni3=2N(N+1 ...
4. Given these formulas: - i=1?N?1=N - ?i=1N?i= - ?i=1N?i2=??i=1N?i3=2N(N+1)?6N(N+1)(2N+1)?(2N(N+1)?)2? Simplify the expression i=0?N?1?[N4?32?i3+N216?i+N2?] so as to remove the sigma. Be careful to note the index starting and ending values.