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Find the first derivative and second der...

Find the first derivative and second derivative of given function w.r.t the independent variable x.
`y = root(7)(x) + tanx`

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The correct Answer is:
`(dy)/(dx)=(x^((-6)/(7)))/(7)+sec^(2)x rArr (d^(2)y)/(dx^(2))=(-6)/(49)x^((-13)/(7))+2tanx sec^(2)x`
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