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Show that for all values of n, the euqat...

Show that for all values of n, the euqation of the tangent to the curve `((x)/(a))^(n)+((y)/(b))^(n)=2` at the point `(a,b), "is" (x)/(a)+(y)/(b)=2`

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The correct Answer is:
`(x)/(h)+(y)/(b)=2`
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