External division formula: R=m−nmQ−nP with m:n=2:1.
R=12(−i^+j^+k^)−(i^+2j^−k^)=−3i^+0j^+3k^=−3i^+3k^.
If x^2/3 + y^2/3 = a^2/3, then dy dx is equal to :
CUET UG 2023 — Mathematics Applied-Mathematics
2023mcqmedium
If x2/3+y2/3=a2/3, then dxdy is equal to :
Official previous-year question
Held on 22 May 2023 · Verified 13 Jul 2026.
Options
- A
−3xy
- B
−3xy
- C
3xy
- D
−xy
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