TCS
Company
Logical Reasoning
Coding Decoding
Of the four vectors A, B, C, D find out which pair forms an orthogonal set
A = i+j, B = 3i+2j, C = -7i+j, D = 2i-3j
(a)BD (b) AD (c) BC (d) AC (e) AB
Read Solution (Total 3)
-
- B.D=(3,2)*(2,-3)=0
- 11 years agoHelpfull: Yes(10) No(0)
- a: coz to make it orthogonal a.b=moda*modb*cosq here q=90
- 11 years agoHelpfull: Yes(0) No(1)
- acually orthogonal vectors means the product is 0.
so if we verify he options, optionA is apt for the answer ...B.D=(3i+2J).(2i-3J)=0
- 7 years agoHelpfull: Yes(0) No(0)
TCS Other Question
Which set of data exhibits a higher Standard Deviation?
(a) 7, 0, -7, 7, 0, -7 (b) -7, -7, -7, -7, -7, -7 (c) 7, -7, 7, -7, 7, -7
(d) 7, 7, 7, 7, 7, 7 (e) 7, 7, 7, 0, 7, 7
Evaluate the expression
M (373, 7) + R (5.8) + T (7.7) - R (3.4) where M stands for modulo arithmetic, R stands for Round-off operation and T stands for Truncation Operation
(a) 13 (b) 16 (c) 12 (d) 19 (e) 21