Question
Question: If a,b,cÎ R<sup>+</sup>, such that a + b + c = 18; then maximum value of (a<sup>2</sup> b<sup>3</sup...
If a,b,cÎ R+, such that a + b + c = 18; then maximum value of (a2 b3 c4) is –
A
219. 33
B
218. 33
C
218. 32
D
None
Answer
219. 33
Explanation
Solution
Let Nos. are 2a,2a,3 b,3 b,3 b,4c,4c,4c,4c
\ G £ A
̃ [22⋅33⋅44a2b3c4]1/9 £ 918
̃ £ 2 ̃
£ 29
\ a2b3c4 £ 219 . 33
Identify a, b, & c