Mathematics NDA/NA SOLVED PAPER 2019 (II) (51 to 100)

Total Questions: 50

21. What is the area of the region bounded by |x| < 5, y = 0 and y = 8?

Correct Answer: (b) 80 sq units
Solution:

22. Find the answer of given equation?

Correct Answer: (d) Neither 1 nor 2
Solution:

23. Find the answer of given equation?

Correct Answer: (b) 1/3
Solution:

24. What is the degree of the differential equation:

Correct Answer: (a) 1
Solution:

25. Which one of the following is the second degree polynomial function f(x) where, f(0) = 5, f(−1) = 10 and f (1) = 6?

Correct Answer: (c) 3x² - 2x + 5
Solution:

26. What is the slope of the curve at the point of intersection P?

Question:- (76 to 78) Read the following information and answer the
three items that follow .
A curve y = meᵐˣ where m > 0 intersects Y-axis at a point P.

Correct Answer: (b) m²
Solution:

27. How much angle does the tangent at P make with y-axis?

A curve y = meᵐˣ where m > 0 intersects Y-axis at a point P.

Correct Answer: (c)
Solution:

28. What is the equation of tangent to the curve at P?

A curve y = meᵐˣ where m > 0 intersects Y-axis at a point P.

Correct Answer: (d) y = m²x + m
Solution:

29. Find the answer of given equation?

Question:- (79 to 80)
Read the following information and answer the two items that follow.
Let f(x) = x², g(x) = tan x and h(x) = log x.

Correct Answer: (a) 0
Solution:Given, f(x) = x², g(x) = tan x and h(x) = log x

30. What is [fo(fof)] (2) equal to ?

Correct Answer: (d) 256
Solution:Given, f(x) = x², g(x) = tan x and h(x) = log x