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Maths, Addmaths and Statistics: Post your doubts here!

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Yes, 2x =x which is not possible. I wrote this. Is this correct?
wht if x=0
u shud have wrote abt x>2 and all tht
and also I think they wud reserve mark for the fact tht 2^x=0 is not possible because it was quite conspicuous when we made the equation
 
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wht if x=0
u shud have wrote abt x>2 and all tht
and also I think they wud reserve mark for the fact tht 2^x=0 is not possible because it was quite conspicuous when we made the equation

I Did write that. That it doesn't fit in the domain.. and x>2

2x = x is possible if x is zero. But zero isn't in the domain.. so.. no solution
 
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what was the integration answer where we had to integrate y then apply limits from 1.5 to 0
 
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so exactly proves my point since in this question f^-1>0 tht is the original domain
for tht question x>2 not x>0
and hence range of f^-1>2 and so on and so tht...I think it wud be pretty clear now

I don't understand :/

Why not that infinity thing?
 
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