Grade 12 - Comp. / Convex functions 4 exercises (100% corrected)

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-123I-123JOCf -2-12I-2-12JOCg 1. Introduction E.7788 Consider the two decreasing func-tions f and g shown below : Which of these two curves decreases ˇ less and less ı? E.7795 Consider the function f defined on R by the expression : f ( x ) = 4 · x · e 0.5 · x +1 Study the sign on R of the function f  , second derivative of the function f . E.7797 Consider the function f defined on R by: f ( x ) = x · e x 2 3 Determine the sign on R of the function f  , second derivative of the function f . E.7796 Consider the function f defined on R by: f ( x ) = 6 3 · x · e 2 · x +1 Determine the sign on R of the function f  , the second deriva-tive of the function f . https://chingmath.fr chapExoCorrec/7788 sacados/7788 -123I-123JOCf -2-12I-2-12JOCg chapExoCorrec/7795 sacados/7795 chapExoCorrec/7797 sacados/7797 chapExoCorrec/7796 sacados/7796