If sin (9x – 8)° = cos (4x + 7)°, what is the
value of x?
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Step-by-step explanation:
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°
Answered by
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Answer:
Step-by-step explanation:
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