$\int_0^1 \dfrac{x^4(1-x)^4}{1+x^2}dx$
Algebra, Geometry, International Mathematical Olympiads, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Algebra, Geometry, International Mathematical Olympiads, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
$=\int_{0}^{1}(x^{6}-4x^{5}+5x^{4}-4x^{2}+4-\frac{4}{x^{2}+1})dx=3\frac{1}{7}-\pi$
ΑπάντησηΔιαγραφή