Evaluate-0-pi-4-x-2-tan-x-dx-prepared-by-M-N-

Question Number 107342 by mnjuly1970 last updated on 10/Aug/20

E v a l u a t e :

χ := \int_{0}^{\frac{π}{4}} x^{2} t a n (x) d x = ? ? ?

★ p r e p a r e d b y : ★

♣ ♣ ♣ M . N ♣ ♣ ♣

Answered by Her_Majesty last updated on 10/Aug/20

\approx . 111 188 759 557