Question

12 If three real numbers a. b. are in arithmetic progression, the value of the determi- 22 + 3 + 4 2 + 5 - 2 + 5 + 6 r? + a rº + b 2 + c 2​

Answer 1

Answer:

Correct option is B. 2 2/3

We know, from AM≥GM, for positive quantities, that 3(a+b+c) ≥ 3 abc

3(a+c)+b ≥ 3abc

But 2b=(a+c).

This implies

33b≥(4) 1/3b≥(2) 2/3

Step-by-step explanation:

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