Mathematics NDA/NA SOLVED PAPER 2017 (II) (51 to 100)

Total Questions: 50

31. Find the answer of given equation?

Correct Answer: (b) 2 and 2
Solution:

32. Find the answer of given equation?

Correct Answer: (a)
Solution:

33. The set of all points, where the function f(x) = √1 - e⁻ˣ² is differentiable, is:

Correct Answer: (c) (−∞, 0) ∪ (0, ∞)
Solution:

34. Match List-I with List-II and select the correct answer using the code given below the lists :

Correct Answer: (b)
Solution:

35. If f(x) = x(√x − √(x + 1), then f(x) is:

Correct Answer: (b) differentiable at x = 0
Solution:

36. Which one of the following graph represents the function f(x) = x/x, x ≠ 0?

Correct Answer: (c)
Solution:

37. Find the answer of given equation?

Correct Answer: (a) 251
Solution:

38. ∫(ln x)⁻¹ dx − ∫(ln x)⁻² dx is equal to?

Correct Answer: (a) x(ln x)⁻¹ + C
Solution:

39. A cylindrical jar without a lid has to be constructed using a given surface area of a metal sheet. If the capacity of the jar is to be maximum, then the diameter of the jar must be k times the height of the jar. The value ofk is:

Correct Answer: (b) 2
Solution:

40. Find the answer of given equation?

Correct Answer: (d) π/√2
Solution: