Recent questions without an upvoted answer

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If M is a n x n matrix with rank n - 1, then M can be made non-singular by changing one element.

asked in WBJEE2022 by admin_rational Professor | 38 views

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WBJEE 2022 - Question 3 - Find the value of a+d.

asked in WBJEE2022 by admin_rational Professor | 169 views

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WBJEE 2022 - Question 1 - Under which of the following condition(s) does(do) the system of equations

asked in WBJEE2022 by admin_rational Professor | 136 views

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If for each m > 1, the subsequence $(x_{mn})$ of $(x_n)$ is convergent, then can we conclude $(x_n)$ is convergent?

asked in Real Analysis by admin_rational Professor | 60 views

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Prove that in a tree with maximum degree , there are at least leaves

asked in Discrete Mathematics by admin_rational Professor | 37 views

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20 persons are sitting around a table. How many ways can we choose 3 persons, no two of whom are neighbours?

asked in Discrete Mathematics by Junky Expert | 48 views

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Find the number of all 20-digit integers in which no two consecutive digits are the same.

asked in Discrete Mathematics by Junky Expert | 74 views

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WBJEE 2022 Code B Question 2: Find locus.

asked in WBJEE2022 by admin_rational Professor | 55 views

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Find the equation of the circle passing through the vertices of the triangle .

asked by admin_rational Professor | 42 views

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Describe all solutions of Ax=0 in parametric vector form, where A is row equivalent to the given matrix.

asked in Linear Algebra by Junky Expert | 73 views

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Suppose the maximum degree of a tree T is 4. If n1(T) = 20, n2(T) = n3(T) = n4(T), find the number of vertices of T.

asked in Discrete Mathematics by admin_rational Professor | 8.6k views

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Give an example of a connected planar graph with $v$ vertices, $e$ edges and $k$ components such $e=3v-6k$.

asked in Discrete Mathematics by admin_rational Professor | 65 views

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$x^2/x=6$ সমীকরণটির বীজ/বিজদয় হবে

asked in Calculus by admin_rational Professor | 154 views

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$ax^2+bx+c=0$ $(a\neq c)$ সমীকরণের বিজদয় সমান হলে

asked in Calculus by admin_rational Professor | 16.9k views

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WBJEE 2021 - Set A - Question 3: Find the value of $\alpha$.

asked in WBJEE 2021 by admin_rational Professor | 37.0k views

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WBJEE 2021 - Set A - Question 2: Find the value of $f(1)$.

asked in WBJEE 2021 by admin_rational Professor | 98 views

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WBJEE 2021 - Question 1 - Find the limit of I.

asked in WBJEE 2021 by admin_rational Professor | 55.2k views

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CSIR UGC NET June 2019 Part B Question 53

asked in Probability by Junky Expert | 123 views

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CSIR UGC NET June 2019 Part B Question 52

asked in Probability by Junky Expert | 172 views

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CSIR UGC NET June 2019 Part B Question 51

asked in Probability by Junky Expert | 489 views