题目已知正实数a,b满足a+b=1,求论证:厂·房毛2·证明证法1:分析法证明:要证明原不等式成立,(房·:。为压厂查(厂)2·(厂,’感4厂厂)2·二·厂蕊1(l); la+了+‘+合二心一2二要证该式成立,又只要证明(仄万)2、1,整理得为。、。。、粤;显然由。勺乙件所以厥·厂‘2·十。二1,(·, The subject is known to have a positive real number a,b that satisfies a+b=1, for proof: the factory·fang hair2·proof of evidence method1: analytical method proves: to prove that the original inequality was established, (room ·:. For pressure factory check (factory) 2 (factory, ’influence 4 factory’) 2 · 2 factory core 1 (l); la + a + ’+ combined two hearts and a 22nd to prove that the formula is established, but as long as the proof (Zhu Wan) 2,1, It is apparent that the spoon is made of two pieces of bamboo, so the factory is ’2. ten. two.1, (,,