Find the derivative of (y=frac{x^7 – x^5}{x^4})
- A.
x(x^{2}-1) - B.
3x(x^{2}-1) - C.
3x^{2}-1 - D.
7x^{6}-5x^{4}
Correct Answer: Option C
Explanation
(y=frac{x^7 – x^5}{x^4}\
y = frac{x^7}{x^4} div frac{x^5}{x^4}\
y = x^3 – x \
frac{dy}{dx} = 3x^2 – 1)