Questions
The system of equations has no solution, if
detailed solution
Correct option is A
LetΔ=α111α111α C1→C1+C2+C3 =α+211α+2α1α+21α =(α+2) 1111α111α R1→R1−R2, R2→R2−R3 =(α+2)01-α00α-11-α11α =α+2o(αα-1-11-α)−(1−α)0−(1−α) =(α+2)(1−α)2If α=1the system of equations has infinitely many solutions If α=−2, on adding 3 equations we obtain 0=-9∴ The system has no solution for α=−2Similar Questions
The number of matrices whose entries are either and for which the system has exactly two distinct solutions, is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests