1 votes 1 votes The system of equations $x + y + z = 6, 2x + y + z = 7, x + 2 y + z = 8$ has A unique solution No solution An infinite number of solutions None of these Linear Algebra isro2012-ece isro-ece linear-algebra system-of-equations + – sh!va asked Feb 28, 2017 retagged Dec 8, 2022 by Lakshman Bhaiya sh!va 411 views answer comment Share Follow See 1 comment See all 1 1 comment reply Sandeep Suri commented Jan 12, 2018 reply Follow Share Ax = b has a unique solution if and only if rank[A] = rank[A|b] = n where n is number of unknown variables 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes Answer Unique Solution Vaibhav Bhanawat answered Jan 12, 2018 Vaibhav Bhanawat comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes x + y + z = 6, 2x+ y +z = 7, x + 2 y +z = 8 1 1 1 6 2 1 1 7 1 2 1 8 we can also find it using Rank Ax = b has a unique solution if and only if rank[A] = rank[A|b] = n where n is number of unknown variables rank[A] = rank[A|b] = 3 hence unique solution Sandeep Suri answered Jan 12, 2018 Sandeep Suri comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Option a abhishekmehta4u answered Mar 10, 2019 abhishekmehta4u comment Share Follow See all 0 reply Please log in or register to add a comment.