MCQ
If $\sqrt{\frac{x}{y}}+\sqrt{\frac{y}{x}}=4$, then $\frac{d y}{d x}=$___________
  • A
    $\frac{y-7 x}{7 x-y}$
  • $\frac{7 y-x}{y-7 x}$
  • C
    $\frac{y+7 x}{7 y-x}$
  • D
    $\frac{7 x+y}{x-7 y}$

Answer

Correct option: B.
$\frac{7 y-x}{y-7 x}$
B

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free