Created by T. Madas
Question 4
Evaluate the following.
a)
5
d 43
6x − 2x 2
dx
8x 3 − 5x 2
b)
d 1 1
−
dx x
x
− x −2 + 1 x
2
c)
d 3
27
x−
dx
x
1 x − 3 + 27 x −2
3
d)
d 3 x −2
dx x 32
−3x −2 + 3x
e)
d 1 2
− 3
dx 3 x x
−x
1
3
− 32
2
Created by T. Madas
− 52
+1x
2
− 52
− 32
Created by T. Madas
Question 5
Evaluate the following.
a)
d x + x2
dx
x
1 x− 2 + 3 x 2
2
2
b)
d 4x + x
dx 2 x 2
−2 x −2 − 3 x
4
c)
d x2 + 2
dx x3
− x −2 − 6 x −4
d)
d 1− x
dx 4 x3
−
− 3 x −4 + 5 x 2
4
8
e)
3
d x5 − 2 x x
3x
dx
2 x−3 − 1 x− 2
9
3
1
1
− 52
7
1
Created by T. Madas
1
Created by T. Madas
Question 6
Differentiate the following expressions with respect to x
a) y =
b) y =
c) y =
d) y =
e) y =
4+ x
2x
dy
= −6 x −4 − x −3
dx
3
x 2 + 3x
2 x
dy 3 − 12 3 12
= x + x
4
dx 4
x+4 x
dy
−7
= −5 x 2 − x −3
dx
2 x3
x ( 2x − 4)
3x2
( x + 2 )( 2 x − 3)
4 x5
dy
−3
−5
= − 1 x 2 + 2x 2
3
dx
dy
= − 3 x −4 − x −5 + 15 x −6
2
2
dx
Created by T. Madas