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whats x ?

variable :P

or do u need to solve for x ???

just prove it to 1

by means of anything

good luck with that :)

what?

i think question is incomplete...we can solve for x, but can't prove that =1...

PROVE ???

x= 1 :P

nopes, x not =1 :P

then x= -1 :P

nopes, x not =-1 :P

are u solving that for x ,saura ?

there you go ^^

u copied that ^

yeah should i give the source ? :P

it is equal to 1

take a screenshot of your question

|dw:1353238271333:dw|Looks like no solution

koli, any luck with screenshot ?

Let x^2=y

y^2+y

thats a good substitution to solve for x

u get quadratic in y

x^4+x^2-1=0|dw:1353238509864:dw|

|dw:1353238651184:dw||

|dw:1353238684199:dw|

|dw:1353238793125:dw|
So, only two real roots

so for any of the 4 values of x we found above, u can prove that
x^4+x^2= 1

how it is equal to 1??

ginding??

*finding

:P

ok

*values

PROVED!!!!

what ?