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Solve system of linear equations , using...

Solve system of linear equations , using matrix method if exists
5x+y-z=7
4x-2y-3z=5
7x+2y+2z=7

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The correct Answer is:
x=1,y=1,z=-1
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KUMAR PRAKASHAN-DETERMINANTS -Practice Work
  1. Solve system of linear equations , using matrix method if exists 3x-...

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  2. Solve system of linear equations , using matrix method if exists 5x-...

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  3. Solve system of linear equations , using matrix method if exists 5x+...

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  4. Solve system of linear equations , using matrix method if exists x-y...

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  5. Solve system of linear equations , using matrix method if exists 3x+...

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  6. Solve system of linear equations , using matrix method if exists 2/x...

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  7. Solve system of linear equations , using matrix method if exists x-2...

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  8. Solve system of linear equations , using matrix method if exists 4x-...

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  9. Solve system of linear equations , using matrix method if exists x-y...

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  10. The sum of three numbrs is 6. If we multiply third number by 3 and add...

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  11. Prove that |{:(a+1,1,1),(1,b+1,1),(1,1,c+1):}|=abc(1/a+1/b+1/c+1)

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  12. If anebnecand |{:(a,a^3,a^4-1),(b,b^3,b^4-1),(c,c^3,c^4-1):}|=0 then p...

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  13. Prove that |{:(sqrt(13)+sqrt3,2sqrt5,sqrt5),(sqrt(15)+sqrt(26),5,sqrt(...

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  14. Prove that |{:(x^2,y^2,z^2),((x+1)^2,(y+1)^2,(z+1)^2),((x-1)^2,(y-1)^2...

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  15. Using the property of determinants andd without expanding in following...

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  16. Solve that |{:(1+x,1-x,1-x),(1-x,1+x,1-x),(1-x,1-x,1+x):}|=0

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  17. Show that |{:(sum(r=1)^(16)2^r,a,2(2^(16)-1)),(3sum(r=1)^(16)4^r,b,4(4...

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  18. If a1,a2,a3….ar are in G.P then show that |{:(a(r+1),a(r+5),a(r+9)),(a...

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  19. If pnea,qneb,rnec and |{:(p,b,c),(a,q,c),(a,b,r):}|=0 then prove that ...

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  20. A=[{:(-5,1,3),(7,1,-5),(1,-1,1):}]and B=[{:(1,1,2),(3,2,1),(2,1,3):}] ...

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