Difference between revisions of "AMC 12C 2020 Problems"

Revision as of 13:42, 21 April 2020

What is the sum of the solutions of the equation $(x + 4)(x - 5)(x + 6) = 0$ ?

$\textbf{(A)}\ -5 \qquad\textbf{(B)}\ 0 \qquad\textbf{(C)}\ 5 \qquad\textbf{(D)}\ 12 \qquad\textbf{(E)}\ 14$

What is the numerical value of the sum $\sum_{k = 1}^{11}(i^{3} + i^{2})

Revision as of 13:41, 21 April 2020 (view source) Shiamk (talk \| contribs) (→‎Problem 1) ← Older edit		Revision as of 13:42, 21 April 2020 (view source) Shiamk (talk \| contribs) (→‎Problem 2) Newer edit →
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	==Problem 2==		==Problem 2==

−	What is the numerical value of the sum ~~<math>~~\sum_{k = 1}^{11}i~~</math>?~~	+	What is the numerical value of the sum $\sum_{k = 1}^{11}(i^{3} + i^{2})