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Mathematics, 17.10.2019 21:00 MiddleSchool2005

Find the value of cos50/sin40+sin42/cos48-2tan18/cot7 2

Find the value of cos50/sin40+sin42/cos48-2tan18/cot72

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Find the value of cos50/sin40+sin42/cos48-2tan18/cot7 2
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