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Find the minors and cofactos of each ent...

Find the minors and cofactos of each entry of the first column of the matrix A ad hence find the value of the determinant in each case:
`A = [(0,2,6),(1,5,0),(3,7,1)]`

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PRADEEP PUBLICATION-DETERMINANTS-EXERCISE
  1. Find the minors and cofactos of each entry of the first column of the ...

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  2. Find the minors and cofactos of each entry of the first column of the ...

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  3. Find the minors and cofactos of each entry of the first column of the ...

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  4. Find the minors and cofactos of each entry of the first column of the ...

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  5. Evaluate the following determinants: {:|(-2,3),(4,-9)|

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  6. Evalate the following determinants: |(1//2, 8),(4,2)|

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  7. Evaluate the following determinants: |(a+ib , - c + id),(c+id, a-ib)...

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  8. Evaluate the following determinants: |(3x, x-7),(x+1,5x+1)|

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  9. Show that |(sin10^@, - cos10^@),(sin80^@, cos80^@)| = 1

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  10. Show that {:|(cos15^@, sin15^@),(sin75^@, cos75^@)|:}= 0

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  11. Evaluate |(x,x+1),(x-1,x)|

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  12. Evaluate the following determinants: |(1,0,0),(0,1,0),(0,0,1)|

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

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  14. Evaluate the following determinants: |(1,0,2),(0,2,1),(2,0,3)|

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  15. Evaluate the following determinants: |(1,-3,1),(6,-7,8),(2,1,-4)|

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  16. Evaluate the following determinants: |(3,2,3),(2,2,3),(3,2,3)|

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  17. Evaluate the following determinants: |(a,h,g),(h,b,f),(g,f,c)|

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  18. If A = [(2,5),(3,1)] and B = [(4,-1),(1,3)], verify that det AB =(det ...

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  19. Evaluate :|(a,0,0,0),(0,b,0,0),(0,0,c,0),(0,0,0,d)|

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  20. 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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