Maxima and MinimaHard

Question

If x be real then the minimum value of f(x) = 3x+1 + 3-(x+1) is-

Options

A.2
B.6
C.2/3
D.7/9

Solution

f(x) = 3x+1 + 3-(x + 1)
f(x) = 3x+1 +
using Am ≥ Gm

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