Matrices and Determinants 4 Question 20

21. If the system of equations x+ay=0,az+y=0 and ax+z=0 has infinite solutions, then the value of a is

(a) -1

(b) 1

(c) 0

(d) no real values

Show Answer

Answer:

Correct Answer: 21. (a)

Solution:

  1. Given equations x+ay=0,az+y=0,ax+z=0 has infinite solutions.

|1a001aa01|=0

1+a3=0 or a=1



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक