WAEC - Further Mathematics (2019 - No. 32)
If y = (5 - x)\(^{-3}\), and \(\frac{dy}{dx}\)
\(\frac{-15}{(5 - x)^4}\)
\(\frac{-3}{(5 - x)^4}\)
\(\frac{3}{(5 - x)^4}\)
\(\frac{15}{(5 - x)^4}\)
説明
y = (5 - x)\(^{-3}\)
\(\frac{dy}{dx}\) = -3(5 - x)\(^{-4}\)
= \(\frac{-3}{(5 - x)^4}\)