Bachelor of Computer Application (BCA)
CS/BCA/SEM-1/BM-101/2013-14
2013
MATHEMATICS
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
(Multiple Choice Type Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) If ∆=abc+2fgh-af2-bg2-ch2 , then the equation
ax2+2hxy+by2+2gx+2fy+c=0 represents a pair of straight lines if
a) ∆>0 b) ∆<0
c) ∆=0 d) none of these.
ii) If the matrix 01-2-103λ-30 is singular then the value of λ is
a) 0 b) 4
c) 2 d) -1
iii) If A be a matrix whose inverse exists then which of the following is not true?
a) (AT)-1=(A-1)T b) A-1=(detA)-1
c) (A2)-1=(A-1)2 d) None of these.
[Please download the .pdf file for correct version of the question paper. Thank you]
