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Find the equations of the tangent and the normal to the curve `(x^2)/(a^2)-(y^2)/(b^2)=1` at `(sqrt(2)a ,\ b)` at indicated points.

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The correct Answer is:
`(sqrt2)/(a)x-(y)/(b)=1, ax+sqrt2by-sqrt2(a^(2)+b^(2))=0`.
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