Question Library
Browse our collection of questions across various subjects
Mathematics
Easy
View
If A and B are square matrices of order 2 such that det(AB) = det(BA), then which one of the…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
Let A = | p q | | r s |where p, q, r and s are any four different prime numbers…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
How many matrices of different orders are possible with elements comprising all prime numbers less than 30?
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If A and B are two matrices such that AB is of order n × n, then which one of…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If Z = 1 + i, where i = √-1, then what is the modulus of Z + Z̅?
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If n = 100!, then what is the value of the following? 1/log₂n + 1/log₃n + 1/log₄n + … + 1/log₁₀₀n
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If the roots of the quadratic equation x² + 2x + k = 0 are real, then
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If a₁, a₂, a₃, …, a₉ are in GP, then what is the value of the following determinant? | ln a₁…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
The number of integer values of k, for which the equation 2 sin x = 2k + 1 has a…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If a + b + c = 4 and ab + bc + ca = 0, then what is the…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If C₀, C₁, C₂, …, Cₙ are the coefficients in the expansion of (1 + x)ⁿ, then what is the…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
If Δ is the value of the determinant | a₁ b₁ c₁ | | a₂ b₂ c₂ | | a₃ b₃ c₃ |then…
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
The value of x, satisfying the equation log₍cos x₎ sin x = 1, where 0 < x < π/2 is
NDA Mathematics 2021
NDA 2021
Mathematics
Easy
View
The smallest positive integer n for which (1 – i)/(1 + i))^n = 1 where i = √-1, is
NDA Mathematics 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021
General Ability
Easy
View
Each item in this question consists of a sentence with an underlined word followed by four words, (a), (b), (c)…
NDA General Ability 2021
NDA 2021