(a?b+b+c+c²a)(ab? + bc? + ca). 161....
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(a?b+b+c+c²a)(ab? + bc? + ca). 161. Ifa, b and be positive, then the minimum value of - abe? (A) 3 (B) 6 (C) 9 (D) 12 162 Teta Rwand Sare four nositive real numbers such that their product is unity, then the least value

JEE/Engineering Exams
Maths
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a As ( A M geq G M ) ( frac{frac{9}{c}+frac{b}{a}+frac{c}{b}}{3} geq sqrt[3]{frac{a}{66} times frac{b}{a} times frac{4}{b}} ) Also ( frac{a+b}{b}+frac{b}{a c}+frac{c}{a} geqslant sqrt[3]{frac{a}{b} times frac{b}{c} times frac{e}{a}} ) multipyling ( left(frac{a}{c}+frac{b}{q}+frac{c}{b}right)left(frac{a}{b}+frac{b}{c}+frac{c}{a}right) geqslant 9 ) ( Rightarrow frac{left(a b+b^{2} c+c^{2} aright)left(a b^{2}+b c^{2}+c a^{2}right)}{a b c} geq 9 ) minumer
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