Mathematics

Problem

For the relation

x\tan y+y=0

, which of the following expressions is equal to

\dfrac{dy}{dx}

? a)

-\dfrac{\tan y}{x\sec^{2}y+1}

\dfrac{\tan y}{x\sec^{2}y+1}

-\dfrac{\sec^{2}y}{x+\tan y}

-\dfrac{\tan y + 1}{x\sec^{2}y}