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Derivatives Assignment

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Derivatives
Assignment
I.
Differentiate w.r.t. x from first principles
(a)
(f)
(b)
(g)
(c)
(h)
(d) sin
(i)
(e)
II.
Differentiate the following w. r. t x
1. (sin x + cos x)2
2. cos (x2 + 1)
3.
4.
5.
6.
7.
8.
(j)
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
–
III.
Choose the correct option from the following
1. If
(A)
then
2
(B)
(C)
(D)
2. Let
(A)
(B) 1
(C) 0
(D) -1
3.
(A)
y+1
(B) y – 1
(C) y
(D)
(C) -1
(D)
4.
(A) 0
(B) 1
(A)
(B)
5.
(C)
(D)
6.
(A)
sin x
(B) sin x
(C) cos x
(D) cos x
7. If
(A)
(B)
(C)
(D) tan x + cot x
8. If
(A) -2
(B) 0
(C)
(D) does not exist
Answers:
I.
(a)
(b)
(c) –
(d)
(e)
(f)
(g)
(h)
(i)
(j)
II.
1. 2 cos 2 x
2. – 2 x sin (x2 + 1)
3.
4.
5.
6.
7. x {x cos 2 x – sin 2 x}
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
0
x {x cos 2 x – sin 2 x}
20.
Answer Key (MCQs)
Question Number
1
2
3
4
5
Correct Option
A
B
C
B
A
Question Number
6
7
8
9
10
Correct Option
B
C
A
A
D
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