Mathematics · 2021
JEE Main · 25 February 2021, Shift 2 · Q85
If the curves x=y^4 and x y=k cut at right angles, then (4 k)^6 is equal to \ \ \ \.
If the curves $\displaystyle x=y^4$ and $\displaystyle x y=k$ cut at right angles, then $\displaystyle (4 k)^6$ is equal to \_\_\_\_.
Official answer
4
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