Serial numbers for a product are to be made using 4 letters followed by 2 digits. The letters are to be taken from the first 6 letters of the alphabet, with no repeats. The digits are taken from the 10 digits 0, 1, 2, ..., 9, with no repeats.
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Find three angles, two positive and one negative, that are coterminal with the given angle: - 5π18. a.-13π18,13π18,31π18 b.-41π18,31π18,67π18 c.-23π18,13π18,31π18 d.-23π18,31π18,67π18 e.-41π18,13π18,67π18 f) none of the above.
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