cos(40)=33/x

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Solution for cos(40)=33/x equation: 


D( x )

x = 0

x = 0

x = 0

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

cos(40) = 33/x // - 33/x

cos(40)-(33/x) = 0

cos(40)-33*x^-1 = 0

-33*x^-1 = -cos(40) // : -33

x^-1 = cos(40)/33

-1 < 0

1/(x^1) = cos(40)/33 // * x^1

1 = (cos(40)/33)*x^1 // : cos(40)/33

33*(cos(40))^-1 = x^1

x = 33*(cos(40))^-1

x = 33*(cos(40))^-1

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