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Find x if det A = 0 where A = [(x+1,-3,4...

Find x if det A = 0 where `A = [(x+1,-3,4),(-5,x+2,2),(4,1,x-6)]`

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PRADEEP PUBLICATION-DETERMINANTS-EXERCISE
  1. Evaluate det A where A = [(2,0,0,1),(-3,0,1,0),(1,1,-1,1),(2,0,5,0)]

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  2. If |(3x,7),(-2,3)| = |(8,7),(-2,3)| find x.

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  3. Find x if det A = 0 where A = [(x+1,-3,4),(-5,x+2,2),(4,1,x-6)]

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  4. Prove that the determinant |[x,sintheta,costheta],[-sintheta,-x,1],[co...

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  5. Evaluate the following determinants: |(1,3,9),(3,9,1),(9,1,3)|

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  6. Evaluate the following determinants: |(2,3,7),(13,17,5),(15,20,12)|

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  7. Evaluate the following determinants: |(102,18,36),(1,3,4),(17,3,6)|

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  8. Evaluate the following determinants: |(1,-3,3),(4,-1,3),(3,5,3)|

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  9. Evaluate the following determinants: |(219,117,345),(19,9,34),(7,3,5...

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  10. Evaluate the following determinants : {:|(0,2,0),(2,3,4),(4,5,6)|

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  11. Evaluate the following determinant|(2,-1,0,1),(-3,0,1,-2),(1,1,-1,1),(...

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  12. Evaluate the determinant |(1^2, 2^2, 3^2,4^2),(2^2,3^2,4^2,5^2),(3^2,4...

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  13. Without expanding, prove that |(6,2,3),(9,3,5),(12,4,7) = 0

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  14. Use properties of determinants ot evaluate: {:|(x+y,y+z,z+x),(z,x,y)...

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  15. Evaluate the following determinants: |(0,c,b),(c,0,a),(-b,-a,0)|

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  16. By using determinants, find the area of the triangle whose vertices ar...

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  17. By using determinants, find the area of the triangle whose vertices ar...

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  18. Find the area of the triangle whose vertices are (-2, -3), (3, 2) and ...

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  19. By using determinants, find the area of the triangle whose vertices ar...

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  20. By using determinants, find the area of the triangle whose vertices ar...

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