Difference between revisions of "1977 AHSME Problems/Problem 8"
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Revision as of 13:17, 18 November 2016
Solution
Solution by e_power_pi_times_i
or depending whether is positive or negative. If , , and are positive, then the entire thing amounts to . If one of the three is negative and the other two positive, the answer is . If two of the three is negative and one is positive, the answer is . If all three are negative, the answer is . Therefore the set is .