Current location - Health Preservation Learning Network - Health preserving recipes - Jinan massage which place, according to the high-end point is passable.
Jinan massage which place, according to the high-end point is passable.
Arctanx = ∫1(1x 2) dx from the identity:

arctanx =∫ 1/( 1 x 2)dx = x/( 1 x 2)2∫(x 2)/( 1 x 2)2dx-

arctanx = x/( 1 x^2)2(∫( 1 x^2)/( 1 x^2)^2dx-∫ 1/( 1 x^2)^2dx)

arctanx = x/( 1 x^2)2(∫ 1/( 1 x^2)dx-∫ 1/( 1 x^2)^2dx)

arctanx = x/( 1 x^2)2 arctanx-2∫ 1/( 1 x^2)^2dx

∫1/(1x 2) 2dx = (x/(1x 2) arctangent) /2

∫(e^2)( 1 x^2)^(-2)dx=(e^2)∫ 1/( 1 x^2)^2dx=(e^2)(x/( 1 x^2)arctanx)/2

Related articles
  • What does salt water do? What does salt water do?
  • Seawater composition
  • Benefits and efficacy of hair care and health preservation
  • Birthday greetings to beauty salon customers
  • Method for make peanut candy
  • Who knows Hengtaixiang old Beijing cloth shoes? How's it going?
  • How about Inner Mongolia Haoxuan Furniture Co., Ltd.?
  • How to keep perilla fresh for a long time and how to preserve perilla.
  • Life skills that children should master according to their age (0- 13 years old), a good reference!
  • Finger exercises for the elderly

    • copyright 2024 Health Preservation Learning Network All rights reserved