Nilai Ekstrem di Titik Stasioner

Hendra Gunawan

Diketahui fungsi f(x) = x2 – x2cos(1/x) untuk x ≠ 0 dan f(0) = 0. Buktikan bahwa f‘(0) = 0 dan f mencapai nilai minimum global di c = 0.

Catatan. Uji Turunan Pertama ataupun Uji Turunan Kedua tidak akan membantu.

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Bandung, 08-05-2017

Published by Hendra Gunawan

I'm a professor of mathematics at the Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung, Indonesia.

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