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If the imaginary part of (z−1)(cosα−isinα)+(z−1)−1×(cosα+isinα) is zero, then which of the following can be correct? |
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Answer» If the imaginary part of (z−1)(cosα−isinα)+(z−1)−1×(cosα+isinα) is zero, then which of the following can be correct? |
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