JEE Main 2019 Mathematics question
If the system of linear equations x − 4y + 7z = g, 3y − 5z = h, −2x + 5y − 9z = k is consistent, then:
Answer: (D)
Solution
on the left, so consistency needs 2g + h + k = 0.
If the system of linear equations x − 4y + 7z = g, 3y − 5z = h, −2x + 5y − 9z = k is consistent, then:
on the left, so consistency needs 2g + h + k = 0.