Find the Sum $$1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } + 4 ^ { 2 } + \ldots + 87 ^ { 2 }$$

Q57: Find the coefficient of the given

Q58: Determine whether the infinite geometric series

Q59: Determine whether the infinite geometric series

Q60: Find an explicit rule for the

Q61: Write the sum using summation notation,

Q63: For the given statement <span

Q64: State an explicit rule for the

Q65: Tell whether permutations or combinations are being

Q66: Use mathematical induction to prove the

Q67: Expand the binomial.<br>- <span class="ql-formula" data-value="(