Mathematics NDA/NA SOLVED PAPER 2017 (II) (01 to 50)

Total Questions: 50

11. Find the answer of given equation?

Correct Answer: (a)
Solution:

12. The sum of all real roots of the equation |x - 3|² + |x - 3| - 2 = 0 is:

Correct Answer: (d) 6
Solution:

13. It is given that the roots of the equation x² - 4x - log₃ P = 0 are real. For this the minimum value of P is:

Correct Answer: (c) 1/81
Solution:

14. If A is a square matrix, then the value of adj Aᵀ - (adj A)ᵀ is equal to?

Correct Answer: (c) null matrix whose order is same as that of A
Solution:

15. Find the answer of given equation?

Correct Answer: (a) 6
Solution:

16. Simplify the equation?

Correct Answer: (b) cosθ
Solution:

17. The number of terms in the expansion of (x + a)¹⁰⁰ + (x - a)¹⁰⁰ after simplification: is:

Correct Answer: (c) 51
Solution:

18. In the expansion of (1 + x)⁵⁰ , the sum of the coefficients of odd powers of x is:

Correct Answer: (b) 2⁴⁹
Solution:

19. Simplify the equation?

Correct Answer: (a)
Solution:

20. A person is to count 4500 notes. Let aₙ denote the number of notes he counts in the nᵗʰ minute. If a₁ = a₂ = a₃ =......= a₁₀ = 150, and a₁₀, a₁₁, a₁₂,.....are in AP with the common difference −2, then the time taken by him to count all the notes is:

Correct Answer: (b) 34 minutes
Solution: