CLASS 12TH MATHS, DETERINANTS, IMPORTANT QUESTIONS FROM CBSE EXAM, THE MATHS GURUDEV

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CLASS 12TH MATHS, DETERINANTS,Using properties of determinants , prove the following:
|x+y x x|
| 5x+4y 4x 2x|
|10x+8y 8x 3x|
IMPORTANT QUESTIONS FROM CBSE EXAM, THE MATHS GURUDEV, SURINDER SIR,
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