Useful Trick To Solve 'Infinitely Many Solutions' to System of Equations Questions

Solving systems of linear equations (simultaneous equations) by evaluating determinants is a very common College Entrance exam question - amongst them, solving 'infinitely many solutions' questions is likely the most frequently found.
There is a good trick that can be employed in solving these quickly, using augmented matrices plus a corollary of Cramer's Rule, which we explain at the beginning of the video. We then illustrate how to use the trick with three examples from recent JEE Main exams.
For more videos on determinants see our playlist 'Determinants' at • Determinants
For more videos on matrices see our playlist 'Matrices' at • Matrices
For more videos on JEE Main see our playlist 'JEE Aspirants' at
• JEE Aspirant
For more videos on College Entrance Exams generally see our playlist 'UPCAT and Other CETs'
• UPCAT and other CETs

[@grestyacademy]

For more videos on determinants check out our playlist 'Determinants' at th-cam.com/play/PLlX3COjsHPVDRXIZxhSRysxctSYRuLyxl.html

[@aliciaaquino8846]

nice trick

[@grestyacademy]

Glad you think so!😎