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|x+1 x–1; x²+x+1 x²–x+1| is equal to :
If A is a square matrix of order 2 and |A| = -2, then value of |5A'| is :
Let f(x) = |x² sin x; p -1|, where p is a constant. The value of p for which f'(0) = 1 is :
If A = [3 4; 5 2] and 2A + B is a null matrix, then B is equal to :
If |A| = |kA|, where A is a square matrix of order 2, then sum of all possible values of k is
If x[1 2] + y[2 5] = [4 9], then :
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