vault backup: 2026-01-14 17:21:01

pull/6/head
刘柯妤 2 months ago
parent 01cdd41380
commit ae7266c652

@ -105,4 +105,4 @@ $$
$$
f'(\xi_1)-f'(\xi_2) = f''(\xi)(\xi_1-\xi_2) < 0
$$
故 $f(x_1+x_2)-f(x_2)-f(x_1) < 0$ $f(x_1+x_2) < f(x_1)+f(x_2)$
故 $f(x_1+x_2)-f(x_2)-f(x_1) < 0$ $f(x_1+x_2) < f(x_1)+f(x_2)$
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