JEE Advanced 2020 Full Test 5 Paper 2
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Question : 46 of 54
Marks:
+1,
-0
Let x , y , z are positive real numbers and ℓ 1 is the least value of 2 x 4 + 2 y 4 + 4 z 4 − 8 x y z and ℓ 2 is the least value of x 4 y + x y 4 +
+
+ 8 , then-
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