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`y = tan^(-1) x^2`
To determine the derivative of y, use the formula `(tan ^(-1) u)' = 1/(1+u^2) * u'` .
`y ' = 1/(1+ (x^2)^2) * (x^2)' = 1/(1+x^4) * 2x`
`y ' = (2x)/(1+x^4)`
Hence, the derivative of `y = tan^(-1) x^2` is `y' = (2x)/(1+x^4)` .
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