| 2023-04-06 | \( \mathrm{P} \)
If \( \Delta_{r}=\left|\begin{array}{ccc}2 r-1 & {... | 2:34 | 0 | |
|
| 2023-04-06 | Let \( A \) be a square matrix all of whose entries are
P integers.... | 2:50 | 4 | |
|
| 2023-04-06 | If \( \left[\begin{array}{cc}1 & -\tan \theta \\ \tan \theta & 1\en... | 3:34 | 2 | |
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| 2023-04-06 | If \( A=\left[\begin{array}{cc}4 & x+2 \\ 2 x-3 & x+1\end{array}\ri... | 2:00 | 1 | |
|
| 2023-04-06 | P
The parameter, on which the value of the
W determinant
\[
\left|\... | 3:22 | 1 | |
|
| 2023-04-06 | If \( A \) is a non-zero column matrix of order \( m \times 1 \)
\(... | 3:54 | 0 | |
|
| 2023-04-06 | If \( A \) is an orthogonal matrix, then \( A^{-1} \) equals
P
(A) ... | 1:54 | 1 | |
|
| 2023-04-06 | What must be the matrix \( X \),
P
If \( 2 X+\left[\begin{array}{ll... | 1:12 | 1 | |
|
| 2023-04-06 | Matrix \( A \) such that \( A^{2}=2 A-I \), where \( I \) is the
P ... | 3:17 | 1 | |
|
| 2023-04-06 | If \( A \) is non-singular and \( (A-2 I)(A-4 I)=O \), then
\( \mat... | 1:42 | 4 | |
|
| 2023-04-06 | The matrix \( A \) satisfying the equation
P \( \left[\begin{array}... | 2:29 | 2 | |
|
| 2023-04-06 | If \( x^{2}+y^{2}+z^{2} \neq 0, x=c y+b z, y=a z+c x \) and
\( \mat... | 2:48 | 0 | |
|
| 2023-04-06 | If \( \left[\begin{array}{ll}2 & 1 \\ 3 & 2\end{array}\right] A\lef... | 3:36 | 3 | |
|
| 2023-04-06 | If \( A=\left[\begin{array}{ll}4 & 2 \\ 3 & 4\end{array}\right],|\o... | 1:28 | 3 | |
|
| 2023-04-06 | If \( A^{2}-A+I=0 \), then the inverse of \( A \) is
P
(A) \( I-A \... | 1:58 | 0 | |
|
| 2023-04-06 | \[
\cos \theta\left[\begin{array}{cc}
\cos \theta & \sin \theta \\
... | 2:32 | 1 | |
|
| 2023-04-06 | If \( B \) is an invertible matrix and \( A \) is a matrix, then
P
... | 2:25 | 1 | |
|
| 2023-04-06 | Matrix \( A=\left[\begin{array}{ccc}1 & 0 & -k \\ 2 & 1 & 3 \\ k & ... | 2:01 | 3 | |
|
| 2023-04-06 | If the three linear equations
P
\[
\begin{array}{l}
x+4 a y+a z=0 \... | 2:37 | 1 | |
|
| 2023-04-06 | If \( A \) and \( B \) are two matrices such that rank of \( A=m \)... | 1:25 | 0 | |
|
| 2023-04-06 | If a singular matrix \( A=\left[a_{i j}\right]_{2 \times 2} \) alwa... | 4:17 | 0 | |
|
| 2023-04-06 | Consider a system of equations \( 2 x+a y+6 z=8 \),
\( \mathrm{P} \... | 5:06 | 5 | |
|
| 2023-04-06 | If \( A \) and \( B \) are two matrices of same order \( 3 \times 3... | 3:50 | 1 | |
|
| 2023-04-06 | Consider a system of equations \( 2 x+a y+6 z=8 \),
\( \mathrm{P} \... | 0:34 | 1 | |
|
| 2023-04-06 | If \( A \) is the matrix \( \left[\begin{array}{cc}1 & -3 \\ -1 & 1... | 5:37 | 10 | |
|
| 2023-04-06 | Consider a system of equations \( 2 x+a y+6 z=8 \),
\( \mathrm{P} \... | 1:16 | 0 | |
|
| 2023-04-06 | Let ' \( P \) ' and ' \( Q \) ' are two matrices such that
\( \math... | 4:43 | 0 | |
|
| 2023-04-06 | Let \( A=\left[\begin{array}{lll}a & b & c \\ b & c & a \\ c & a & ... | 6:38 | 2 | |
|
| 2023-04-06 | If \( 3^{\alpha} \) is a factor of the determinant
P
\[
\left|\begi... | 4:11 | 2 | Let's Play |
|
| 2023-04-06 | If \( A=\left(\begin{array}{lll}1 & 4 & 0 \\ 5 & 2 & 6 \\ 1 & 7 & 1... | 4:40 | 2 | |
|
| 2023-04-06 | Let \( A=\left[a_{i j}\right] \) be a square matrix of order 3 sati... | 8:49 | 1 | |
|
| 2023-04-06 | Which of the following is/are correct?
P
(1) If \( A \) and \( B \)... | 4:02 | 4 | |
|
| 2023-04-06 | Let \( T_{5} \) be the set of matrices of order \( 2 \times 2 \) su... | 8:01 | 5 | |
|
| 2023-04-06 | Let \( A=\left[a_{i j}\right]_{3 \times 3} \) be a matrix such that... | 2:41 | 0 | |
|
| 2023-04-06 | If \( A_{r}=\left[\begin{array}{ccc}r \cot r^{\circ} & 0 & 0 \\ 0 &... | 7:07 | 9 | |
|
| 2023-04-06 | Cayley-Hamilton theorem states that every square matrix
\( \mathrm{... | 2:21 | 3 | |
|
| 2023-04-06 | Let \( A \) and \( B \) are two square matrices of order \( 2 \time... | 4:10 | 2 | |
|
| 2023-04-06 | \( \mathrm{P} \)
Let \( F(\alpha)=\left[\begin{array}{ccc}\cos \alp... | 3:18 | 0 | Let's Play |
|
| 2023-04-06 | Let \( A=\left[\begin{array}{cc}0 & -\tan \theta / 2 \\ \tan \theta... | 5:21 | 0 | |
|
| 2023-04-06 | \( A=\left[\begin{array}{cc}\tan \frac{\pi}{3} & \sec \frac{2 \pi}{... | 7:14 | 8 | |
|
| 2023-04-06 | Cayley-Hamilton theorem states that every square matrix
\( \mathrm{... | 3:45 | 1 | |
|
| 2023-04-06 | If \( a, b \) and \( c \) are the roots of the equation
\( \mathrm{... | 7:18 | 1 | |
|
| 2023-04-06 | A skew-symmetric matrix \( S \) satisfies the relation \( S^{2} \)
... | 1:50 | 0 | |
|
| 2023-04-06 | Let \( A=\left[\begin{array}{ccc}2 & 0 & 7 \\ 0 & 1 & 0 \\ 1 & -2 &... | 7:05 | 3 | |
|
| 2023-04-06 | If \( A \) is a square matrix such that \( (A-2 I)(A+I)= \)
\( \mat... | 1:56 | 1 | |
|
| 2023-04-06 | If \( P=\left[\begin{array}{cc}\cos (\pi / 6) & \sin (\pi / 6) \\ -... | 6:44 | 0 | |
|
| 2023-04-06 | If \( A_{1}, A_{3}, \ldots \ldots, A_{2 n-1} \) are \( n \) skew-sy... | 3:33 | 1 | |
|
| 2023-04-06 | \( A \) and \( B \) are two square matrices such that \( A^{2} B=B ... | 3:42 | 0 | |
|
| 2023-04-06 | Cayley-Hamilton theorem states that every square matrix
\( \mathrm{... | 2:03 | 6 | |
|
| 2023-04-06 | If \( A \) and \( B \) are symmetric matrices of the same order
\( ... | 2:38 | 0 | |
|
| 2023-04-06 | If \( Z \) is an idempotent matrix, then \( (I+Z)^{n} \)
\( \mathrm... | 2:57 | 3 | |
|
| 2023-04-06 | If the product of \( n \) matrices
\( \mathrm{P} \) \( \left[\begin... | 2:38 | 3 | |
|
| 2023-04-06 | Let \( A \) be \( a 3 \times 3 \) matrix given by \( A=\left(a_{i j... | 7:02 | 6 | |
|
| 2023-04-06 | Let \( A=\left[\begin{array}{ll}0 & \alpha \\ 0 & 0\end{array}\righ... | 3:19 | 1 | Let's Play |
|
| 2023-04-06 | Which of the following statement(s) is/are correct?
\( \mathrm{P}^{... | 10:35 | 0 | |
|
| 2023-04-06 | Two nonconducting infinite plane sheets having charges math xmlns=http://www.w3.org/1998/Math/Ma... | 10:25 | 19 | |
|
| 2023-04-06 | Find \( A^{-1} \) if \( A=\left[\begin{array}{lll}0 & 1 & 1 \\ 1 & ... | 6:01 | 25 | |
|
| 2023-04-06 | If the matrix \( A=\left[\begin{array}{ccc}1 & 1 & 2 \\ 0 & 2 & -3 ... | 5:44 | 0 | |
|
| 2023-04-06 | If \( A=\left[\begin{array}{cc}\cos \theta & \sin \theta \\ -\sin \... | 2:56 | 0 | |
|
| 2023-04-06 | In presence of magnetic field d-sub orbit is -
(1) 5 - Fold degenate
(2) 3-Fold degenerate
(3) 7... | 1:44 | 1 | |
|
| 2023-04-06 | If \( B, C \) are square matrices of order \( \mathrm{n} \) and if ... | 2:42 | 0 | |
|
| 2023-04-06 | Compute the inverse of the matrix.
\( \mathrm{P} \)
\[
A=\left[\beg... | 5:03 | 1 | |
|
| 2023-04-06 | The sum of three numbers is 2 . If we subtract the
\( \mathrm{P} \)... | 5:18 | 0 | |
|
| 2023-04-06 | Using matrix method, solve the following system
\( \mathrm{P} \) of... | 7:04 | 2 | |
|
| 2023-04-06 | The major product of the following reaction is :[JEE Main-2019 (April)](1)(2)(3) | 4:28 | 5 | |
|
| 2023-04-06 | The value of \( C_{P}-C_{V} \) is \( 1.09 \ R \) for a gas sample in state \( A \) and is \( 1.0... | 8:13 | 14 | |
|
| 2023-04-06 | Two spheres having same radius and mass are suspended by two strings of equal length from the sa... | 5:54 | 36 | |
|
| 2023-04-06 | Predict the products in the given reaction:
img src=https://penpencil-static-content.s3.ap-south... | 5:39 | 15 | |
|
| 2023-04-06 | A block of mass \( 250 \mathrm{~g} \) slides down an incline of inclination \( 37^{\circ} \) wit... | 5:14 | 6 | |
|
| 2023-04-06 | What is true w.r.t turion
\( \mathrm{P} \)
(1) Found in aquatic plants
W
(2) Meant for vegetativ... | 3:35 | 9 | |
|
| 2023-04-06 | are the examples of tissues, formed by
P dedifferentiation.
(1) Interfascicular cambium
W
(2) Co... | 6:37 | 6 | |
|
| 2023-04-06 | Who observed that the coleoptiles of canary grass
P responded to unilateral illumination by grow... | 3:39 | 4 | |
|
| 2023-04-06 | Skoog and his co-workers worked with P (1) Maize (2) Wheat W (3) Tobacco (4) Rice | 2:52 | 0 | |
|
| 2023-04-06 | The pigment molecules responsible for photosynthesis
P are located in the
W
(1) Cytoplasm of th... | 2:43 | 3 | |
|
| 2023-04-06 | Foolish seedling disease of rice is due to
\( \mathrm{P} \)
(1) Auxin
W
(2) Hormone which was fi... | 2:58 | 3 | |
|
| 2023-04-06 | A Dihybrid plant on self pollination produced 400
\( \mathrm{P} \) phenotypes with 9 types of ge... | 3:54 | 8 | |
|
| 2023-04-06 | To obtain virus-free healthy plants from a diseased
P one by tissue culture technique, which par... | 3:09 | 2 | |
|
| 2023-04-06 | Which one of the following process results in the
P formation of clone of Amoeba?
W
(1) Regener... | 3:01 | 1 | |
|
| 2023-04-06 | Examples of tissues that are formed by
P redifferentiation are
W
(1) Secondary xylem
(2) Second... | 5:59 | 2 | |
|
| 2023-04-06 | Living differentiated cells which have otherwise lost
P the capacity of divide, can regain the p... | 6:03 | 2 | |
|
| 2023-04-06 | A common test to find the genotype of a hybrid by?
P
(A) Crossing of one \( \mathrm{F}_{2} \) pr... | 3:01 | 2 | |
|
| 2023-04-06 | A very time-consuming and tedious process among
\( \mathrm{P} \) the following is
W
(1) collect... | 4:29 | 4 | |
|
| 2023-04-06 | Agriculture accounts for approximately __ A
P per cent of Indias GDP and employs nearly
W B_ pe... | 3:11 | 6 | |
|
| 2023-04-06 | Maize generates resistance against stem borers by
P having
W
(1) low aspartic acid, high nitrog... | 4:22 | 4 | |
|
| 2023-04-06 | Which of the following device is not used by plants to
P prevent autogamy-
W
(A) Self - incompa... | 3:20 | 2 | |
|
| 2023-04-06 | The technique of hybridization used by Mendel was-
P
(A) Back cross
(B) Double cross
W
(C) Singl... | 3:23 | 0 | |
|
| 2023-04-06 | Pneumatophores are useful in
P
(1) Respiration
W
(2) Transpiration
(3) Guttation
(4) Protein syn... | 4:58 | 4 | |
|
| 2023-04-06 | Fill in the blanks.
\begin{tabular}{|c|c|c|}
\hline \( \begin{array}{c}\text { Column-I } \\
\te... | 5:28 | 2 | |
|
| 2023-04-06 | Hairy leaves of many plants are associated with
P
(1) resistance to insect pests
(2) resistance ... | 3:19 | 10 | |
|
| 2023-04-06 | How do thick woody stems deeper layers get
P oxygen?
W
(1) By glycolysis and krebs cycle
(2) De... | 4:34 | 12 | |
|
| 2023-04-06 | Bryophyllum reproduces by P (1) adventitious bud W (2) axillary bud (3) bottom bud (4) terminal bud | 3:37 | 1 | |
|
| 2023-04-06 | The constant feature of embryo sac is P (A) Synergids (B) Antipodals W (C) Egg (D) Polar nuclei | 4:09 | 4 | |
|
| 2023-04-06 | The largest cell in an embryo sac is P (A) Egg (B) Central cell W (C) Synergid (D) Antipodal cell | 4:32 | 3 | |
|
| 2023-04-06 | Rise in respiration during fruit ripening is called
P
(1) Respiratory climax
W
(2) Respiratory c... | 4:05 | 2 | |
|
| 2023-04-06 | A pea plant parent having violet coloured flowers
P with unknown genotype was crossed with a pla... | 4:56 | 4 | |
|
| 2023-04-06 | The main reason for success of Mendel was-
P
(A) Study of all the characters at the same time.
W... | 4:14 | 2 | |
|
| 2023-04-06 | Which breeding technique can be employed to
P develop homozygous pure line breed?
W
(1) Outcros... | 3:18 | 1 | |
|
| 2023-04-06 | Match column I (crop) with column II
P (corresponding disease resistant variety) and select
W t... | 4:19 | 2 | |
|
| 2023-04-06 | Which of the following plants show secondary growth?
P
(1) All plants
W
(2) Pteridophytes
(3) Al... | 3:11 | 2 | Show |
|
| 2023-04-06 | Plant breeding has led to the development of maize
P hybrids rich in lysine content such as:
W
... | 2:55 | 2 | |
|
