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h in (-oo:+oo)
(1/3)*3.14^16*h = 3.14*12 // - 3.14*12
(1/3)*3.14^16*h-(3.14*12) = 0
(1/3)*3.14^16*h-37.68 = 0
1/3*3.14^16*h-37.68 = 0 // + 37.68
1/3*3.14^16*h = 37.68 // : 1/3*3.14^16
h = 37.68/(1/3*3.14^16)
h = 113.04000113*3.14^-16
h = 113.04000113*3.14^-16
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