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KAB (1679)

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Olaaa!! Perrrfect answer. 273  [430 rates]

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Let sin-1i=x
then sinx=i
If x belongs to complex set then I think it is defined.
 
We know
 
sinx=(eix-e-ix)/2i= -i(eix-e-ix)/2
Suppose (eix-e-ix)/2= -1 and put eix=a
Then we get a2+2a-1=0
or a= -1(+or-)( 2)Consider a=((2)-1)
 
eix=((2)-1)
Taking log to the base e on both sides
we get x=[ln((2)-1)]/i
If you are satisfied then I'm waiting for a salute!!!
 
Cheers!!!
 

ADARSH
NITK Surathkal

 this reply: 5 points  (with Olaaa!! Perrrfect answer.   in 1 votes )   [?]
 
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