pomocy-matematyczka mnie zabija jak jej tego nie zrobie-help: P=2*(a*b+b*c+a*c) wyznacz a
P=2*(a*b+b*c+a*c) = 2ab +2bc + 2ac
P - 2bc = 2ab + 2ac
P - 2bc = a(2b + 2c)
a = (P - 2bc)/(2b + 2c)
a = (P - 2bc)/2(b + c)
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P=2*(a*b+b*c+a*c) = 2ab +2bc + 2ac
P - 2bc = 2ab + 2ac
P - 2bc = a(2b + 2c)
a = (P - 2bc)/(2b + 2c)
a = (P - 2bc)/2(b + c)