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JEE Advanced Mathematics question

MathematicsStraight LinesJEE Advanced

The system of equations , , is solvable if is

Answer: (B)

Solution

The system has three equations in two unknowns. It is solvable when it is consistent, i.e. when the solution of the first two also satisfies the third.

Solve and by Cramer's rule. Here , so

x=Missing \end{vmatrix}\begin{vmatrix}8&3\

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Question ID VK-108285