24 JEE Main 2019 Determinants previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 previous-year questions from the Determinants chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Determinants chapter hub.
A value of θ ∈ 0 , π 3 , for which 1 + c o s 2 θ s i n 2 θ 4   c o s 6 θ c o s 2 &…
The number of values of θ ∈ 0 ,   π for which the system of linear equations x + 3 y + 7 z = 0 - x…
If A = 1 sin θ 1 - sin θ 1 sin θ - 1 - sin θ 1 , then for all θ ∈ 3 π 4 , 5 π…
The set of all values of λ for which the system of linear equations x - 2 y - 2 z = λ x x + 2 y + z = λ…
Let the numbers 2 ,   b ,   c be in an A.P. and A = 1 1 1 2 b c 4 b 2 c 2 . If d e t ( A )   ∈ [ 2…
The system of linear equations x + y + z = 2 2 x + 3 y + 2 z = 5 2 x + 3 y + a 2 - 1 z = a + 1
An ordered pair α ,   β for which the system of linear equations 1 + α x + β y + z = 2 α…
If Δ 1 = x s i n θ c o s θ - s i n θ - x 1 c o s θ 1 x and Δ 2 = x s i n 2 θ c o s 2…
If the system of linear equations 2 x+2 y+3 z=a 3 x-y+5 z=b x-3 y+2 z=c where, a, b, care non-zero real numbers, has mo…
The greatest value of c ∈ R for which the system of linear equations x - c y - c z = 0 , c x - y + c z = 0 , c x…
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