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A certain book shop has 10 dozen chemist...

A certain book shop has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs.80, Rs.60, Rs.40, each respectively. Using matrix algebra. Find the total value of the books in the shop.

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A certain bookshop has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs80,Rs60 and Rs,40 each respectively. Find the total amount the bookshop will receive by selling all the books, using matrix algebra.

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SRISIRI PUBLICATION-MATRICES-SAPAR PAPER QUESTIONS
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  2. IF A=[{:(-1,2),(0,1):}] then find AA'. Do A and A' commute with respec...

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  3. IF A=[{:(7,-2),(-1,2),(5,3):}],B=[{:(-2,-1),(4,2),(-1,0):}] then find ...

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  4. Find the determinant of the matrix [{:(a,b,c),(b,c,a),(c,a,b):}]

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  5. Find the inverse of A=[{:(2,-3),(4,6):}]

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  6. Find the rank of [{:(1,2,6),(2,4,3):}]

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  7. IF A=[{:(1,1,3),(5,2,6),(-2,-1,-3):}] then find A^3.

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  8. IF A=[{:(1,-2,3),(0,-1,4),(-2,2,1):}] then find (A')^-1.

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  9. Find the rank of A=[{:(0,1,1,-2),(4,0,2,5),(2,1,3,1):}] using elementa...

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  10. By using Cramer's rule solve 2x-y+3z=9,x+y+z=6,x+y+z=2.

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  11. Solve the following system of equations by using Cramer's rule. x-y+...

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  12. By using Cramer's rule solve 2x-y+3z=9,-x+2y+z=4,3x+y-4z=0.

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  13. By using Cramer's solve 5x-6y+4z=15,7z+4y-3z=19,2x+y+6z=46.

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  14. By using Cramer's solve x+y+z=1,2x+2y+3z=6,x+4y+9z=3

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  15. By using Cramer's solve x+y+z=9,2x+5y+7z=52,2x+y-z=0

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  16. Solve the following equations by using Matrix inversion method. 2x-y...

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  17. Solve the equations x+y+3z=5,4x+2y-z=0,-x+3y+z=5 by matrix inversion m...

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  18. x+y+z=1,2x+2y+3z=6,z+4y+9z=3, by Gauss-Jordan method.

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  19. Solve the equations x-3y-8z=-10,3x+y-4z=0,2x+5y+6z=13, by Gauss -Jorda...

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  20. Solve 2x+6y+11=0,6x+20y-6z+3=0,6y-18z+1=0, by Gauss -Jordan method.

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  21. Examine the consistency of the following systems of equations x+y+z=1...

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