anonymous
  • anonymous
tan^-1[(√x+√a)/(1-√(xa))] differentiate it plz m gtting 1/2(√x) which is not correct answer is 1/[2(√x)(1+x)]
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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hartnn
  • hartnn
same type of question with different substitution
anonymous
  • anonymous
hmm i think i did something wrong let me do it again
anonymous
  • anonymous
well u don't have to substitue :) @hartnn i think i forgot to differentiate tan^-1 (x)^1/2 i missed the tan^-1 part

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More answers

hartnn
  • hartnn
say, sqrt x= tan y sqrt a = tan alpha then , [(√x+√a)/(1-√(xa))] =... ?
hartnn
  • hartnn
ohh..so now did u get it ?
anonymous
  • anonymous
u have to use tan^-1 x + tan^-1 y formula well not now
anonymous
  • anonymous
trying again
anonymous
  • anonymous
:'( not getting :'(
anonymous
  • anonymous
how to differnatiate tan^-1(x)^1/2
hartnn
  • hartnn
use chain rule, know about it ?
anonymous
  • anonymous
no :'( that's the problem simple chain rule i know
anonymous
  • anonymous
like this one sin(cos3x) but never did for inverse trign.........
anonymous
  • anonymous
is the differenatition of tan^-1(x)^1/2 is
anonymous
  • anonymous
is =X =1/(1+(x^1/2)^2 . 1/2*(x)^-1/2 ????????
hartnn
  • hartnn
ok, derivative of tan^{-1} x is 1/(1+x^2), right ?? for derivative of tan^{-1} sqrt(x) you do 1/(1+ [\sqrt x]^2) times deribative of sqrt x
anonymous
  • anonymous
yep
anonymous
  • anonymous
i think i have used chain rule -_- is that a chain rule @hartnn
souvik
  • souvik
you did it,,,kitty
hartnn
  • hartnn
didn't you get the answer then ? yes, thats was chain rule only...
anonymous
  • anonymous
lol i know everything but still do silly things -_- @souvik
souvik
  • souvik
it happens some time...
anonymous
  • anonymous
@hartnn - chain rule :O so that's a chain rule
hartnn
  • hartnn
because what you wrote matches with your final answer...
anonymous
  • anonymous
not some times everytime it happens
souvik
  • souvik
keep your head cool....like MSD
anonymous
  • anonymous
bcoz of calculation mistake i lost 3 marks in maths prob :'( i did everything correct but in final answer i made a error in multiplication
anonymous
  • anonymous
MSD??????
anonymous
  • anonymous
@hartnn -tahnx :)
hartnn
  • hartnn
hey, welcome anytime ^_^
anonymous
  • anonymous
:)
souvik
  • souvik
Indian cricket team captain...
anonymous
  • anonymous
oh :OOO ms dhoni :OOO i don't like him lol
souvik
  • souvik
why?
anonymous
  • anonymous
reminds me of my frenemy :P

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