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evaluate  ∫[ex(1-x2) / (1+x2)]dx


 how can i write it in mathematical way by computer ? i mean to say from where i get mathematical tool .

3 years ago

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Answers : (2)

										

i think that facility is not providing by askiitians


 


any way try it

3 years ago
										

Download MathType, a free download software for typing all mathematical equations. It is a trial version for 30 days but you can either buy it, or uninstall and install it every 30 days.

3 years ago

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ihow use shortcuts for integral calculus
 
 
Hello student, First of all, in order to excel in integral calculus the inetgration formulae should be on your finger tips. There is no shortcut to hardwork and practice, but yes, there are...
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Latika Leekha 9 months ago
∫sin 2x.cos2x dx
 
 
Dear Student, Hint: Multiply and divide by 2, Use 2sinAcosA = sin (2A) and then integrate it. Thanks.
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Vijay Mukati 7 months ago
 
Dear Student, Use the hint as I provided. That will be easier compared to yours. Thanks.
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Vijay Mukati 7 months ago
 
thanks vijay sir.. but if i substitute sin2x =t and then integrate i got different answer
 
sumit 7 months ago
prove that cosA-sinA=root @ cos (A+pi/4)
 
 
L.H.S Since, (cosA-sinA) 2 =1-sin2A cosA-sinA=(1-sin2A) 1/2 ={1+cos( pi/2+2A)} ½ ={1+cos2( pi/4+A)} ½ ={2cos 2 (pi/4 +A)} 1/2 =(2) 1/2 cos( pi/4+ A) 1/2 Hence proved
 
Shantanu Singh 5 months ago
 
Sorry in the solution the root is only over 2 the term of cos will removed with the mod sign
 
Shantanu Singh 5 months ago
 
shantanu singh the root was only for the 2 not for cos
 
purva gupta 5 months ago
21. If the equations x 2 + ax + b = 0 and x 2 + cx + d = 0 have a common root and the first equation have equal roots, then prove that 2(b + d) = ac
 
 
let root of first be p,p. and root of second be p,q. now. p= -a/2. p^2=b.. and pq=d p+q=-c. now... take lhs... 2( p^2+ pq). 2(p(p+q)).that is 2(p(-c)). and also p=-a/2... therefore lhs get...
 
rajnish kumar 5 months ago
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