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Recent questions tagged matrices
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What is the value of the determinant |(0,2,0),(2,3,4),(4,5,6)|?
asked
Apr 7, 2019
in
JEE
by
kratos
determinant
jee
matrices
jee mains
class-12
+3
votes
1
answer
Let A be a non-singular matrix of the order 2 x 2 then |A^-1| = (a) |A| (b) 1/|A| (c) 0 (d) 1
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Apr 7, 2019
in
Class 12
by
kratos
matrices
determinants
bseb model set
class-12
applications of matrices and determinants
+2
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1
answer
Using elementary transformations, find the inverse of the matrices, if it exists.\(\begin{bmatrix}3&10\\[0.3em]2&7\end{bmatrix}\)
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Apr 7, 2019
in
Class 12
by
kratos
matrices
class-12
+1
vote
1
answer
\(F(x) = \begin{bmatrix}cosx&-sinx &0\\[0.3em]sinx&cosx&0\\[0.3em]0&0&0\end{bmatrix}\)
asked
Apr 7, 2019
in
Class 12
by
kratos
matrices
class-12
+1
vote
1
answer
Show that the equations 2x + 6y + 11 = 0, 6x + 20y - 6z + 3 = 0 and 6y - 18z + 1 = 0 are not consistent.
asked
Apr 6, 2019
in
JEE
by
kratos
jee
matrices
determinants
jee mains
class-12
three dimensional geometry
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vote
1
answer
If |(x + 1, x - 1), (x - 3, x + 2)| = |(4, -1), (1, 3)|, then write the value of x.
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Apr 6, 2019
in
JEE
by
kratos
determinant
jee
matrices
jee mains
class-12
+3
votes
1
answer
If A = [(-1,3/2),(-1/2,1/2)], then A^3 =
asked
Apr 6, 2019
in
Class 11
by
kratos
class-11
matrices
determinants
+1
vote
1
answer
If A = [( 1 2), (4 1), (5 6)] , B = [(1 2), (6 4), (7 3)] , then verify that :
asked
Apr 6, 2019
in
Class 12
by
kratos
determinants
class-12
class-11
matrices
+3
votes
1
answer
By using elementary operations, find the inverse of the matrix A = [(1, 2), (2, -1)]
asked
Apr 6, 2019
in
JEE
by
kratos
cbse
jee
matrices
determinants
jee mains
class-12
+2
votes
1
answer
If A is a square matrix and |A| = 2, then write the value of |AA'|, where A' is the transpose of matrix A.
asked
Apr 6, 2019
in
JEE
by
kratos
determinant
jee
matrices
jee mains
class-12
+3
votes
1
answer
There are two circles x2+y2=9 and x2+y3-8x-6y+n2=0.
asked
Apr 6, 2019
in
Class 12
by
kratos
class-11
matrices
class-10
determinants
coordinate geometry
class-12
complex numbers
+2
votes
1
answer
Let A =[(3,2,5),(4,1,3),(0,6,7)] Express A as sum of two matrices such that one is symmetric and the other is skew symmetric.
asked
Apr 6, 2019
in
Class 12
by
kratos
class-11
matrices
class-12
determinants
+2
votes
1
answer
A straight line through a fixed point (2, 3) intersects the coordinate axes at distinct points P and Q.
asked
Apr 5, 2019
in
JEE
by
kratos
jee mains 2018
jee
matrices
jee mains 2019
determinants
jee mains
coordinate geometry
+2
votes
1
answer
Given that tan α and tan β are roots of x^2 – px + q = 0, then value of sin^2(α + β) =
asked
Apr 5, 2019
in
JEE
by
kratos
jee
quadratic equations
matrices
class-9
determinants
jee mains
+3
votes
1
answer
State the statement is True or False, Two matrices are equal if they have same number
asked
Apr 5, 2019
in
Class 12
by
kratos
matrices
class-12
+1
vote
1
answer
The points of contact of the vertical tangents to x = 2 – 3 sinϕ, y = 3 + 2 cosϕ are
asked
Apr 5, 2019
in
JEE
by
kratos
straight lines
cbse
trigonometry
class-11
jee
matrices
determinants
class-10
jee mains
triangle
+3
votes
1
answer
|(sin(x + p), sin(x + q), sin(x + r)), (sin(y + p), sin(y + q), sin(y + r)), (sin(z + p), sin(z + q), sin(z + r))|
asked
Apr 4, 2019
in
JEE
by
kratos
matrices
jee
jee mains
determinant
+1
vote
1
answer
If O is the origin and A and B are, respectively, (a1, b1) and (a2, b2), then OA⋅OB sin(AOB) is equal to
asked
Apr 4, 2019
in
JEE
by
kratos
straight lines
jee
matrices
class-9
jee mains
coordinate geometry
class-12
+3
votes
1
answer
Show that |(-a^2, ab, bc), (ab, - b^2, bc), (ac, bc, - c^2)| = 4a^2b^2c^2
asked
Apr 3, 2019
in
Class 12
by
kratos
cbse
class-11
matrices
determinants
class-12
+1
vote
1
answer
If A be a square matrix. Then A + A' will be a ............. (a) Symmetric matrix (b) Skew symmetric matrix (c) Null matrix (d) Unit matrix
asked
Apr 3, 2019
in
JEE
by
kratos
determinant
jee
matrices
jee mains
class-12
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