Question

If $\cos^{-1}(\frac{y}{b})=\log(\frac{x}{n})^x$, then x2y2 + xy1 =

• A. n2y
• B. -n2y
• C. y2
• D. y

Answer 1

Answer: (B)

-n2y

Answer 2

The correct option is (B) : -n2y.