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question mark

to find integral of funtion
(1+1/x*x)/(x*x+1/x*x +3)

Mahesh rawat , 5 Years ago
Grade 12
anser 3 Answers
Saurabh Koranglekar
576-127_IMG_20200403_203655.jpg
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Last Activity: 5 Years ago
Arun
 
Dear student
 
in denominator x^2 + 1/x^2 – 2 + 5
 
= ( x – 1/x)^2 +( sqrt5)^2
 
now coming to the Question
 
put x – 1/x = t
(1 + 1/x^2 ) dx = dt
 
dt/ t^2 + (sqrt5)^2
 
= 1/ sqrt(5) tan^-1 (t/sqrt5)
 
now put t = x – 1/x
 
Hope it helps
 
Thanks and regards
Last Activity: 5 Years ago
Vikas TU
Dear student 
Hope your doubt gets cleared 
Please refer the solved examples of the below link 
Last Activity: 5 Years ago
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