Ответ:
2
Объяснение:
^2+b^2+c^2+2*(ab-ac-bc)=(a+b-c)^2
a^2+b^2+c^2=26
ab-bc-ac = -11
(a+b-c)^2 = 26-22 = 4
a+b-c= 2
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Answers & Comments
Ответ:
2
Объяснение:
^2+b^2+c^2+2*(ab-ac-bc)=(a+b-c)^2
a^2+b^2+c^2=26
ab-bc-ac = -11
(a+b-c)^2 = 26-22 = 4
a+b-c= 2