Not so easy

Algebra Level 2

What is the minimum value of :- x + 1 x x+\frac{1}{x} for any positive value of x x

3 4 2 0

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1 solution

Math Man
Oct 5, 2014

x + 1 / x > = 2 ( ( x 1 / x ) ) 1 / 2 = 2 x+1/x>=2((x * 1/x))^{1/2}=2

my latex is bad

math man - 6 years, 8 months ago

Doesn't this assume that x x is positive?

Calvin Lin Staff - 6 years, 8 months ago

can you tell me HOW to apply latex formulas ????

Vaibhav Prasad - 6 years, 4 months ago

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