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C3/C4 maths question

Hi guys, any help on how to answer this question would be really helpful!

lny = 2xlnx

find the cartesian equation of y (y in terms of x)

how would i answer it? Thanks in advance :smile:
Reply 1
Original post by Kay Fearn
Hi guys, any help on how to answer this question would be really helpful!

lny = 2xlnx

find the cartesian equation of y (y in terms of x)

how would i answer it? Thanks in advance :smile:


Exponentiate both sides and you're done.
Reply 2
Ln(y)=2xlnx ---> Y= e^2xlnx
Reply 3
Should get y=x2x,x>0 y=x^{2x} , x>0 .

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