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JEE Main 2017 Mathematics question

MathematicsDeterminantsJEE Main 2017

If S is the set of distinct values of 'b' for which the following system of linear equations x + y + z = 1 x + ay + z = 1 ax + by + z = 0 has no solution, then S is

Answer: (C)

Solution

The coefficient determinant is , zero only for a = 1. Then the equations reduce to x + y

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Question ID VK-009002