The conversation between human and AI assistant.
[|Human|] Which of the following are convex functions: x^2, x square, 0, sin(x), e^x, sqrt(x), x^-0.5
[|AI|] x^2, x square, 0, e^x
[|Human|] 
Which of the following are convex functions: x^2, x square, 0, sin(x), e^x, sqrt(x), x^-0.5