NCERT Solutions Class 11th Maths Chapter 13 – Limits And Derivatives Miscellaneous Exercise

NCERT Solutions Class 11th Maths Chapter 13 – Limits And Derivatives Miscellaneous Exercise

TextbookNCERT
classClass – 11th
SubjectMathematics
ChapterChapter – 13
Chapter NameLimits And Derivatives
gradeClass 11th Maths solution 
Medium English
Sourcelast doubt

NCERT Solutions Class 11th Maths Chapter 13 – Limits And Derivatives Miscellaneous Exercise

?Chapter – 13?

Limits And Derivatives

?Miscellaneous Exercise?

1. Find the derivative of the following functions from first principle:
(i) –x 
(ii) (–x) –1 
(iii) sin (x + 1)
(iv) 

90 1

‍♂️Solution:

91 1

(ii) (-x)-1

92 1

93 1

= 1 / x2

(iii) sin (x + 1)

94 1

95 1

(iv) 

96 3

We get,

97 3

98 2

99

Find the derivative of the following functions (it is to be understood that abcdp, q, r and s are fixed non-zero constants and m and n are integers):

2. (x + a)

‍♂️Solution:

89 1

3. (px + q) (r / x + s)

‍♂️Solution:

88 1

87 1

4. (ax + b) (cx d)2

‍♂️Solution:

86 1

5. (ax + b) / (cx + d)

‍♂️Solution:

85 1

6. (1 + 1 / x) / (1 – 1 / x)

‍♂️Solution:

84 1

83 1

7. 1 / (ax2 + bx + c)

‍♂️Solution:

82 1

8. (ax + b) / px2 + qx + r

‍♂️Solution:

81 1

80 2

9. (px2 + qx + r) / ax + b

‍♂️Solution:

79 1

78 1

10. (a / x4) – (b / x2) + cos x

‍♂️Solution:

77 1

76 1

75 1

11. 

74 2

‍♂️Solution:

73 1

12. (ax + b)n

‍♂️Solution:

72 1

71 1

70 1

69 1

13. (ax + b)n (cx + d)m

‍♂️Solution:

68 1

67 1

66 1

65 1

14. sin (x + a)

‍♂️Solution:

64 1

63

62 1

61 1

15. cosec x cot x

‍♂️Solution:

60 1

59 1

So, we get

58 1

57 1

56 3

55 2

16. 

54 2

‍♂️Solution:

53 2

52 2

17.

51 2

‍♂️Solution:

50 2

49 2

48 2

18.

47 2

‍♂️Solution:

46 2

45 3

44 2

19. sinn x

‍♂️Solution:

43 2

42 2

41 2

40 3

39 4

20. 

38 5

‍♂️Solution:

37 5

36 5

21.

35 7

‍♂️Solution:

34 5

33 4

32 4

31 5

22. x4 (5 sin x – 3 cos x)

‍♂️Solution:

30 5

23. (x2 + 1) cos x

‍♂️Solution:

29 5

24. (ax2 + sin x) (p + q cos x)

‍♂️Solution:

28 6

25. 

27 4

‍♂️Solution:

26 4

25 6

24 7

26. 

23 5

‍♂️Solution:

22 9

21 9

27. 

20 10

‍♂️Solution:

19 11

28. 

18 13

‍♂️Solution:

17 16

16 18

15 19

14 21

29. (x + sec x) (x – tan x)

‍♂️Solution:

13 26

12 31

11 35

10 37

9 39

8 42

7 48

6 51

5 49

4 52

30. 

3 61

‍♂️Solution:

2 66

1 73