Question
CIVICS > ELECTION_COMMISSION
1) If Qt and Ql be the sub-matrices of Qf (fundamental cut-set matrix) corresponding to twigs and links of a connected graph respectively, then
1) Qt is an identity matrix
2) Ql is a rectangular matrix
3) Qf is of rank (n - 1)
4) -
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2 and 3
View Answer        UPSC IES EC 2014 Answer Key Question par
Answer : 1 and 3 only




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