Question: 8
(Choose 1 answer)
(See picture)
A. (iii)
B. (ii)
C. (i)
D. (iv)
E. None of the other choices is correct
Differentiate y = x²+9x
(i) dy/dx = (x² + 9x)-4/5
(ii) dy/dx =
√(x² + 9x) ³½³ (7x+9)
1
(iii) dy/dx = (x²+9x)
-4/5
(7x6
+9)
5
1
(iv) dy/dx =
+9x)-4/5(x+9)
