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Recently Referred Formulae

p_{[a-b-c]}=p_a\frac{p_b}{1-p_a}\frac{p_c}{1-p_a-p_b}+p_a\frac{p_c}{1-p_a}\frac{p_b}{1-p_a-p_c}+p_b\frac{p_a}{1-p_b}\\frac{p_c}{1-p_a-p_b}
p_{[a-b]}=p_a\frac{p_b}{1-p_a}+p_b\\frac{p_a}{1-p_b}
p_{a-b-c}=p_a\frac{p_b}{1-p_a}\\frac{p_c}{1-p_a-p_b}
p_{a-b}=p_a\\frac{p_b}{1-p_a}
p_{a-b-c}=p_a\\frac{p_b}{1-p_a}\\frac{p_c}{1-p_a-p_b}