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討論串[微積] 證明不等式
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Since f"(x)<=0, f is a concave function.. i.e. f( (1-w)*x+w*y ) >= (1-w)*f(x)+w*f(y).. for any w belong to (0,1) and 0 <= x,y <= 1.. Now fixed M, t an
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Prove:(a-x)^6 - 3a (a-x)^5 + (5/2)a^2*(a-x)^4 -(1/2)a^4*(a-x)^2 < 0. each x 屬於 (0,a). 6 5 2 4 4 2. (a-x) - 3a(a-x) + (5/2)a (a-x) - (1/2)a (a-x). 2 4
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