1 . 4y2-5x2=20

• A. $3x=\pm 5$
• B. $3x=\pm \frac{1}{5}$
• C. $3y=\pm \frac{1}{5}$
• D. $3y=\pm 5$

Answer: Option D

Explanation:

2 . 4y2-5x2=20

• A. $\frac{2}{\sqrt{5}}$
• B. $\frac{3}{\sqrt{5}}$
• C. $\frac{2}{5}$
• D. $\frac{\sqrt{3}}{5}$

Answer: Option B

Explanation: