Question Number 149395 by mathdanisur last updated on 05/Aug/21

Answered by Olaf_Thorendsen last updated on 05/Aug/21

∫_a ^b f(x) dx = lim_(n→∞) ((b−a)/n)Σ_(k=1) ^n f(a+k((b−a)/n)) ∫_3 ^5 x^4 dx = lim_(n→∞) ((5−3)/n)Σ_(k=1) ^n (3+k((5−3)/n))^4 ∫_3 ^5 x^4 dx = lim_(n→∞) (2/n)Σ_(k=1) ^n (3+((2k)/n))^4 ⇒ D

Commented bymathdanisur last updated on 05/Aug/21

Ser, Thank You