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Classifying Complex Numbers Instructions Click to select an answer. Otherwise use the spacebar to advance.

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COMPLEX NUMBERS all numbers of the form a + bi, where a and b are real numbers a + 0i 0 + bi a + bi

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Classify each number shown as belonging in set A, B or C by clicking in the set NOT on the letter a + 0i 0 + bi a + bi

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-7 + 3i a + 0i a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set A is for strictly real numbers like 14, -9, ¾. Press spacebar. a + 0i a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set B is for strictly imaginary numbers like –7i, 11i, or ½i. Press spacebar. a + 0i a + 0i 0 + bi 0 + bi a + bi

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CORRECT! Press spacebar twice. a + 0i a + 0i 0 + bi 0 + bi a + bi

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-7 a + 0i a + 0i 0 + bi 0 + bi a + bi

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CORRECT! Press spacebar twice. a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set B is for strictly imaginary numbers like –7i, 11i, or ½I. Press spacebar. a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set C is for strictly complex numbers like 4 –3i, ½ + i, or –3 + 6i. Press spacebar. a + 0i 0 + bi 0 + bi a + bi

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12 - 3i a + 0i a + 0i 0 + bi 0 + bi a + bi

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4 a + 0i a + 0i 0 + bi 0 + bi a + bi

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-5i a + 0i a + 0i 0 + bi 0 + bi a + bi

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CORRECT! Press spacebar twice. a + 0i a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set A is for strictly real numbers like –7, 11, or ½. Press spacebar. a + 0i 0 + bi 0 + bi a + bi

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Incorrect. Set C is for strictly complex numbers like 4 –3i, ½ + i, or –3 + 6i. Press spacebar. a + 0i 0 + bi 0 + bi a + bi

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13 a + 0i a + 0i 0 + bi 0 + bi a + bi

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2i a + 0i a + 0i 0 + bi 0 + bi a + bi

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1 + 2 / 3 i a + 0i a + 0i 0 + bi 0 + bi a + bi

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Classifying Complex Numbers Session is over.

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