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Mathematics, 27.01.2021 03:30 davionb556

If sinx=(-15)/17 with π≤x≤3π/2 and cosy=3/5 with 0≤y≤π/2, find the exact value of cos⁡〖(x-y)〗

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If sinx=(-15)/17 with π≤x≤3π/2 and cosy=3/5 with 0≤y≤π/2, find the exact value of cos⁡〖(x-y)〗...

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