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PMB 3004: Calculus
Tutorial 5
1. Differentiate the following functions with respect to x.
a) 52 )31( xy
b) 23 )4()( xxf
c) 3
1
(5 2)y
x
d) )1()14()( 62 xxxf
e) )32ln()( xxf
f) 2ln( 3)y x
g) 122)( xexg
h) 2 3( ) xh x e
i) 2ln( )xy x e
j) xxy tansin2
k) xxy cos3sin2 3
l) xxxy cossin
m) xxxy cossin 2
n) 2
cos4
x
xy
o) x
xy
cos1
sin
p) y = ln( sin (2x))
q) y= cos (4x- cos(3x))
2. Find dx
dy by implicit differentiation.
a) 122 xy
b) 3649 22 yx
c) 1xy
d) 2222 4 yx , where is a constant.
e) 82 xxy
f) 032 22 xyyxx
g) y = (4x-7)x
h) y = (cos x)2x-1
i) y = (4x-7)3(3-5x)
7