# MCQs in Differential Calculus (Limits and Derivatives) Part I - Answers

Answers key for the Compiled MCQs in Differential Calculus (Limits and Derivatives) Part 1 of the series as one topic in Engineering Mathematics in the ECE Board Exam.

Below are the answers key for the Multiple Choice Questions in Differential Calculus (Limits and Derivatives) - MCQs Part 1.

1. B. 2/5

Review: Solution for Number 1

2. D. 1/7

Review: Solution for Number 2

3. C. 8

Review: Solution for Number 3

4. C. 4

Review: Solution for Number 4

5. B. 1/2

Review: Solution for Number 5

6. A. 1

Review: Solution for Number 6

7. C. Infinity

Review: Solution for Number 7

8. A. 24

Review: Solution for Number 8

9. B. e2/Ï€

Review: Solution for Number 9

10. B. ex (cos x2 – 2x sin x2)

Review: Solution for Number 10

11. C. 2x sec (x2 + 2) tan (x2 + 2)

Review: Solution for Number 11

12. D. 6x + 3

Review: Solution for Number 12

13. B. (4x log10 e) / (x2 + 1)

Review: Solution for Number 13

14. B. x / (x2 + 2)1/2

Review: Solution for Number 14

15. C. 2(x + 2)

Review: Solution for Number 15

16. C. –y [(1 + ln xy) / x)]

Review: Solution for Number 16

17. B. (-3x) / √(2 – 3x2)

Review: Solution for Number 17

18. A. –1

Review: Solution for Number 18

19. A. -4 / (1 – 16x2)0.5

Review: Solution for Number 19

20. D. (3(x + 1)2 / x) – ((x + 1)3 / x2)

Review: Solution for Number 20

21. A. (x2 + 2x) / (x + 1)2

Review: Solution for Number 21

22. C. 8x sin (x2 + 2) cos (x2 + 2)

Review: Solution for Number 22

23. B. (– 9/4) y3

Review: Solution for Number 23

24. B. y2

Review: Solution for Number 24

25. B. 6x – 10

Review: Solution for Number 25

26. A. 6

Review: Solution for Number 26

27. D. -0.1768

Review: Solution for Number 27

28. B. -4.94

Review: Solution for Number 28

29. A. 1

Review: Solution for Number 29

30. D. -1 1/4

Review: Solution for Number 30

31. D. –2

Review: Solution for Number 31

32. B. 2/5

Review: Solution for Number 32

33. B. 2

Review: Solution for Number 33

34. A. (2, -3)

Review: Solution for Number 34

35. B. x = 2y

Review: Solution for Number 35

36. B. 3x – 4y = 0

Review: Solution for Number 36

37. C. -2 ± √2

Review: Solution for Number 37

38. A. (2, 18) and (-2, -14)

Review: Solution for Number 38

39. A. 22.36 units

Review: Solution for Number 39

40. C. sec x

Review: Solution for Number 40

### Online Questions and Answers in Differential Calculus (Limits and Derivatives) Series

Following is the list of practice exam test questions in this brand new series:

Differential Calculus (Limits and Derivatives) MCQs
PART 1: MCQs from Number 1 – 50                        Answer key: PART I
PART 2: MCQs from Number 51 – 100                   Answer key: PART II

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