given that cos(3x+30)=sin(1/2x-45) find the value of x
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Answer: 30
Step-by-step explanation:
cos(3x+30)=sin(1/2 x-45)
We know the property cosФ=sin(90-Ф)
sin(90-(3x+30))=sin(x/2-45)
90-3x-30=x/2-45
60=x/2+3x-45
105=(x+6x)/2
210=7x
x=30
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