\phi 3=4t 0,5t^2 r^2 r^2 r^3

Type your math problem... \phi 3=4t-0,5t^2 R^2 r^2 R^3

Question

ϕ 3 = 4 t - 0, 5 t^{2} R^{2} r^{2} R^{3}

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