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Can you determine d ( x x ) d x ?
Let y = x x
⇒ ln y y 1 d y d x d ( x x ) d x = x ln x = ln x d y d x + x x 1 d y d x = y ( ln x + 1 ) 1 = x x ( ln x + 1 ) 1
Challenge master ote -
d ( x x ) d x = d ( x ) d x × d x d ( x x ) 1
y = x x
l o g y = x l o g x
d x d y = x x ( l o g x + 1 )
d ( x x ) d x = x x ( l o g x + 1 ) 1
The shocking fact is that there are only 80% solvers
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Let y = x x ⇒ d ( x x ) d x x = d y d y = 1