2
If A and B are square matrices such that B=−A−1BA, then (A+B)2 is
Go to Discussion
Solution
2
If A is an invertible skew-symmetric matrix, then

is a
Go to Discussion
Solution
3
If F(θ)=[cosθ−sinθ0sinθcosθ0001] , then F(θ)F(α) is equal to
Go to Discussion
Solution
1
If A=[abcbcacab] , where a,b,c are real positive numbers such that abc=1 and ATA=I then
the equation that not holds true among the following is
Go to Discussion
Solution
2
If the matrix

has an inverse matrix, then the value of K is:
Go to Discussion
Solution
4
Go to Discussion
Solution
4
If f(x)={sin[x][x],[x]≠00,[x]=0 , where [x] is the largest integer but not larger than x, then lim is
Go to Discussion
Solution
4
A matrix M_r is defined as M_r=\begin{bmatrix} r &r-1 \\ r-1&r \end{bmatrix} , r \in N then the value of det(M_1) + det(M_2) +...+ det(M_{2015}) is
Go to Discussion
Solution
[{"qus_id":"3770","year":"2018"},{"qus_id":"3753","year":"2018"},{"qus_id":"4274","year":"2017"},{"qus_id":"9441","year":"2020"},{"qus_id":"10670","year":"2021"},{"qus_id":"11528","year":"2023"},{"qus_id":"10193","year":"2015"},{"qus_id":"10224","year":"2015"},{"qus_id":"10449","year":"2014"},{"qus_id":"10475","year":"2014"}]