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Find the interval in which ∣∣∣∣cosxsinx1sinxcosx1cos(x+y)sin(x−y)0∣∣∣∣ lies. |
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Answer» Find the interval in which ∣∣ ∣∣cosxsinx1sinxcosx1cos(x+y)sin(x−y)0∣∣ ∣∣ lies. |
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