Cos(40)=x/11

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Solution for Cos(40)=x/11 equation: 


x in (-oo:+oo)

cos(40) = x/11 // - x/11

cos(40)-(x/11) = 0

cos(40)-1/11*x = 0 // - cos(40)

-1/11*x = -cos(40) // : -1/11

x = -cos(40)/(-1/11)

x = 11*cos(40)

x = 11*cos(40)

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