cos(53)=45/x

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Solution for cos(53)=45/x equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

cos(53) = 45/x // - 45/x

cos(53)-(45/x) = 0

cos(53)-45*x^-1 = 0

-45*x^-1 = -cos(53) // : -45

x^-1 = cos(53)/45

-1 < 0

1/(x^1) = cos(53)/45 // * x^1

1 = (cos(53)/45)*x^1 // : cos(53)/45

45*(cos(53))^-1 = x^1

x = 45*(cos(53))^-1

x = 45*(cos(53))^-1

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