P.T:
cos2xcos3x - cos2xcos7x +cosxcos10x/sin4xsin3x- sin2xsin5x+sin4xsin7x = cot6xcot 5x
Dear Student,
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https://www.meritnation.com/ask-answer/question/sin4xsin3x-sin2xsin5x-sin4xsin7x-cos2xcos3x-cos2xcos7x/trigonometric-functions/8945089
Refer the following similar link:
https://www.meritnation.com/ask-answer/question/sin4xsin3x-sin2xsin5x-sin4xsin7x-cos2xcos3x-cos2xcos7x/trigonometric-functions/8945089