AP EAMCET Engineering 18 Sep 2020 Shift 1 Paper

Section: Mathematics

Question : 13 of 160

Marks: +1, -0

Which of the following is false?
1) If A is a skew symmetric matrix of order 5×5 , then the rank of A is less than 5
2) If P is a nonzero column matrix and Q is a non-zero row matrix, then the rank of PQ is 1
3) Rank of [

1	2	3
2	3	4
5	6	7

]is 2
4) If the lines ar x+br y+cr=0 (r=1,2,3) are distinct and intersect at a point, then rank of [

a1	b1	c1
a2	b2	c2
a3	b3	c3

] is 3

Validate

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