00:01
Hello students, in this problem we are going to find the basis for w that is equal to span of 1, 0, minus 1, minus 2, comma, 4 comma, 1 comma, minus 4 comma, minus 6, comma, 1 comma, 2 comma, minus 1 comma, 2 and 1 comma, 1 comma, minus 1 comma, 0.
00:34
By making row space we have let capital a is equal to 1, 0, minus 1, minus 2, 4, 1, minus 4, minus 6, 1, 2, minus 1, 2 and the last row is 1, 1, minus 1, 0.
01:03
Now by making the row operations that is r2 is equal to r2 minus 4, r1 and r3 is equal to r3 minus r1 and r4 is equal to r4 minus r1.
01:18
Then the above matrix capital a becomes 1, 0, minus 1, minus 2, 0, 1, 0, 2, 0, 2, 0, 4, 0, 1, 0, 2.
01:33
Again making another row operations let us take r3 is equal to r3 minus 2, r2 and r4 is equal to r4 minus r3...