Question: It is only question e) that I need help with, and it says the following: Vi have a person with weight m, height h and

 It is only question e) that I need help with, and

It is only question e) that I need help with, and it says the following:

Vi have a person with weight m, height h and BMI-index 22. Utilize that the function B is homogeneus to show following link:

m * C + 22 = 100 * h * D

We keep in mind that C is simply the partial derivative of m, and D is -1/100 * (partial derivative of h)

B is the function B(m,h) = m/h^2

it says the following:Vi have a person with weight m, height h

5.3(iii): (Hele opgaven loses uden brug af Maple) Lad & vaere et reelt tal. En funktion f defineret pa en delmaengde D af R' kaldes homogen af grad k, hvis der for alle t > 0 og alle (r, y) E D gaelder, at f (tx, ty) = th f(x, y). D skal vaere en sadan delmaengde, at definitionen giver mening. (a) Giv selv et eksempel pa en funktion, som er homogen af grad 3. 2 (b) Antag nu, at fer en C'-funktion. Vis ved brug af kaedereglen, at f opfylder Eulers ligning: Car (x, y) + yay of ( x,y ) = k . f (I, y) (c) Tjek, at din funktion fra (a) opfylder Eulers ligning. Et menneske med vaegten m (kg) og hojden h (m) har BMI-indekset (Body-Mass-Index) B(m, h) = m 72 . Det er en tommelfingerregel, at BMI-indekset skal ligge mellem 18 og 25 for en normalvaegtig person. (d) Giv en fortolkning af tallene C = am aB og D = - 1 aB 100 oh ' (e) Vi betragter en person med vaegten m, hojden h og BMI-indekset 22. Udnyt at B er homogen til at vise folgende sammenhaeng: m . C + 22 = 100 . h . D

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