Mathematics General Science Test Medium Mode

Sr. #	Questions	Answers Choice
1		x =0, y =4 x = -1, y = 2 x = 2, y = 3 x = 3, y = 4
2
3	A and B be two square matrices and if their inverse exist, the (AB)^-1=	A<sup>-1</sup>B<sup>-1</sup> AB<sup>-1</sup> A<sup>-1</sup>B B<sup>-1</sup>A<sup>-1</sup>
4		I 14 I 0 None of these
5	If A and B are two matrices such that AB = B and BA =A, then A²+ B²=	2 AB 2 BA A + B AB

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