Question 555648
I need the derivative of : y = sqrt(x^2) + 1 * sqrt(x^2) - 1 

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I saw this one yesterday.
It still makes no sense.
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y = sqrt(x^2) + 1 * sqrt(x^2) - 1 
y = x + 1*x - 1
y = 2x - 1
y' = 2