cos(t)=1/2x

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Solution for cos(t)=1/2x equation: 


x in (-oo:+oo)

cos(t) = (1/2)*x // - (1/2)*x

cos(t)-((1/2)*x) = 0

cos(t)+(-1/2)*x = 0

t_1 = cos(t)

cos(t)+(-1/2)*x = 0

t_1-x/2 = 0

(2*t_1)/2-x/2 = 0

2*t_1-x = 0

(2*t_1-x)/2 = 0

(2*t_1-x)/2 = 0 // * 2

2*t_1-x = 0

2*t_1-x = 0 // - 2*t_1

-x = -(2*t_1) // * -1

x = 2*t_1

x = 2*cos(t)

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