B=2/9(3.14)r^2

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Solution for B=2/9(3.14)r^2 equation: 


x in (-oo:+oo)

B = 3.14*(2/9)*r^2 // - 3.14*(2/9)*r^2

B-(3.14*(2/9)*r^2) = 0

B-0.69777778*r^2 = 0

B-0.69777778*r^2 = 0

x należy do R

x in (-oo:+oo)

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