Show that the curves `x=y^2a n dx y=k` cut at right angles, if `8k^2=1`

Explanation

curves given are `x=y^2 & xy= k`

`y^2 xx y = k`

`y^3 = k`

`y = k^(1/3)`

so, `x=(k^(1/3))^2`

`x= k^(2/3)`

pt og int p`(k^(2/3) , k^(1/3))`

now, `x=y^2`

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