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2/((sin(2*x))^2)
(4-x^2)^(1/2) > x+2;x
x
((4-x^2)^1)/2 > x+2;x
x
(1/1)*x+3*x+6 = 0;x
x
(1/12)*x+3*x+6 = 0;x
x
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