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

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26 votes

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°

Explanation:

tell me if im wrong

Crush answered Aug 26, 2023

by Crush

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