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If cosycos(π2−x)−cos(π2−y)cosx+sinycos(π2−x)+cosxsin(π2−y)=0, then which of the following is correct |
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Answer» If cosycos(π2−x)−cos(π2−y)cosx+sinycos(π2−x)+cosxsin(π2−y)=0, then which of the following is correct |
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