++ 50 ++ (ab Bc Ca)^2 =3abc(a B C) 158122-Chứng Minh (ab+bc+ca)^2 =3abc(a+b+c)
To Prove A3 C3 3abc A B C B2 C2 Ab Ac Class 9th Youtube Trả lời (1) ta co (abbcac) 2 3abc (abc) = a 2 b 2 b 2 c 2 a 2 c 2 2a 2 bc 2b 2 ac 2c 2 ab 3a 2 bc 3b 2 ac 3c 2 ab (ab ac) 2 (ab bc) 2 (bc ac) 2 >=0 (luon dung voi moi a,b,c) => dpcm Nếu bạn hỏi, bạn chỉ thu về một câu trả lờiA 2 b 2 c 2 2 × 59 = 625 Given, ab bc ca = 59 a 2 b 2 c 2 118 = 625 a 2 b 2 c 2 118 – 118 = 625 – 118 subtracting 118 from both the sides Therefore, a 2 b 2 c 2 = 507 Thus, the formula of square of a trinomial will help us to expand 7th Grade Math Problems 8th Grade Math Practice From Square of a Trinomial to Chứng minh (ab+bc+ca)^2 =3abc(a+b+c)