Q
quynhanhtron_1


1. CMR: a) a^4 + b^4+ c^4 \geq abc( a+b+c)
b) a^8 +b^8 +c^8 \geq a^2.b^2.c^2 (ab+ bc+ ca)
Mong mấy bạn giúp mình nhé
b) a^8 +b^8 +c^8 \geq a^2.b^2.c^2 (ab+ bc+ ca)
Mong mấy bạn giúp mình nhé