CAT Exam

Q.Of the four vectors A,B,C,D find out which pair forms an orthogonal setA = 2i-3j, B = -7i+j, C = 3i+2j, D = i+j
Option A.AC
B AD
C BC
D BD

Read Solution (Total 1)

AC ........... MODA=ROOT13==MODC
11 years agoHelpfull: Yes(1) No(1)

CAT Other Question

Q. The average age of 60 students in a class is 12 years, that of 15 students is 9 years and thatof another 5 of them is 13 years. What is the averageage of the remaining students?Option A 12 yearsB 13 years Q 58. If A + B means A is the father of B; A - B means A is the sister of B; A / B means A is themother of B and A * B means A is the brother of B, which of
the following shows that M is the paternal uncle of N?
Option
A M - P + Q * N
B M * P + Q – N
C N - P + M
D N * P