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10-03-2022
Mathematics

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sin (9x-7) = cos (4x-10) what is x

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dxmartinez114 dxmartinez114

10-03-2022

Answer:

sin(9x-8) = cos(4x+7)

sin(9x-8) = sin(90-(4x+7))

sin(9x-8) = sin(83-4x)

9x-8 = 83 - 4x

13x= 91

x=7°

Step-by-step explanation:

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