BCA II Sem(Y2K8) - Mathematics Question Paper 2009

II Semester B.C.A. Examination, June 2009

(Y2K8 Scheme) (2008·09 & Onwards)

COMPUTER SCIENCE

BCA 203: Mathematics

Time : 3 Hours                                                                                                                   Max. Marks : 90

Instruction : Answer all sections.

I. Answer any ten of the following:
    a) Define symmetric matrix with an example.
    b) If A= [2 -1 ],B = [ 4 3]. Find AB.
                   4  2             2  1
    c) Define order of a Group.
    d) Construct the composition table of multiplication mod 10 for the set {1, 3, 7, 9}.
    e) Find the projection of a = 21+ 3]+ 2k on b = 1+ 2]+ k.
    f) Find a.(bxC) where, a= 2f+ ]+3k,b=-1+2]+k,c=3f+ J+2k.

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