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Prove that |(1,a,a^(2)-bc),(1,b,b^(2)-ca...

Prove that `|(1,a,a^(2)-bc),(1,b,b^(2)-ca),(1,c,c^(2)-ab)|= 0`.

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Prove that |(1,a,a^(2)),(1,b,b^(2)),(1,c,c^(2))|=(a-b)(b-c)(c-a)

Prove that |{:(a,,a^(2),,bc),(b ,,b^(2),,ac),( c,,c^(2),,ab):}| |{:(1,,1,,1),(a^(2) ,,b^(2),,c^(2)),( a^(3),, b^(3),,c^(3)):}|

Sove that |(1,a,a^(2)),(1,b,b^(2)),(1,c,c^(2))|^(2)=|(1+a^(2)+a^(4),1+ab+a^(2)b^(2),1+ac+a^(2)c^(2)),(1+ab+a^(2)b^(2),1+b^(2)+b^(4),1+bc+b^(2)c^(2)),(1+ac+a^(2)c^(2),1+ba+b^(2)c^(2),1+c^(2)+c^(4))| and hence show RHS determinent is =(a-b)^(2)(b-c)^(2)(c-a)^(2)

Prove that |{:(1,a,a^2),(1,b,b^2),(1,c,c^2):}|=(a-b)(b-c)(c-a) .

Prove that |(1/a^(2),bc,b+c),(1/b^(2),ca,c+a),(1/c^(2), ab, a+b)|=0

Without expanding the determinant, prove that {:[( a, a ^(2), bc ),( b ,b ^(2) , ca),( c, c ^(2) , ab ) ]:} ={:[( 1, a^(2) , a^(3) ),( 1,b^(2) , b^(3) ),( 1, c^(2),c^(3)) ]:}

Prove that |(a^(2),bc,ac+c^(2)),(a^(2)+ab,b^(2),ac),(ab,b^(2)+bc,c^(2))|=4a^(2)b^(2)c^(2).

Using properties of determinants, prove that |(-a^2,ab,ac),(ba,-b^2,bc),(ca,cb,-c^2)|=4a^2 b^2 c^2

If a,b and c are non- zero real number then prove that |{:(b^(2)c^(2),,bc,,b+c),(c^(2)a^(2),,ca,,c+a),(a^(2)b^(2),,ab,,a+b):}| =0

Evaluate Delta = {:[ (1,a,bc),( 1,b,ca),(1,c,ab)]:}

SURA PUBLICATION-MATRICES AND DETERMINANTS -EXERCISE 7.2
  1. Prove that |(a^(2),bc,ac+c^(2)),(a^(2)+ab,b^(2),ac),(ab,b^(2)+bc,c^(2)...

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  2. Prove that |(1+a,1,1),(1,1+b,1),(1,1,1+c)|=abc(1+(1)/(a)+(1)/(b)+(1)...

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  3. Prove that |(sec^(2)theta,tan^(2)theta,1),(tan^(2)theta,sec^(2)theta,-...

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  4. Show that |(x+2a,y+2b,z+2c),(x,y,z),(a,b,c)|=0.

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  5. Write the general form of a 3xx3 skew -symmetric matrix and prove that...

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  6. If |(a,b,aalpha+b),(b,c,balpha+c),(aalpha+b,balpha+c,0)|=0, prove that...

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  7. Prove that |(1,a,a^(2)-bc),(1,b,b^(2)-ca),(1,c,c^(2)-ab)|= 0.

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  8. If a,b,c are p^(pt),q^(th) and r^(th) terms of an A.P., find the value...

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  9. Show that |(a^(2)+x^(2),ab,ac),(ab,b^(2)+x^(2),bc),(ac,bc,c^(2)+x^(2))...

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  10. If a,b,c are all positive, and are p^(th), q^(th) and r^(th) terms of ...

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  11. Find the value of |(1,log(x) y,log(x) z),(log(y) x,1,log(y) z),(log(z)...

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  12. If A = [((1)/(2),alpha),(0,(1)/(2))] , prove that sum(k=1)^(n)"det" (A...

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  13. Without expanding, evaluate the determinants : |(2,3,4),(5,6,8),(6x...

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  14. Without expanding evaluate the folleing determinents (ii)|(x+y,y+z,z+x...

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  15. If A is a square matrix and |A|=2, find the value of |"AA"|^(T) .

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  16. If A and B are square matrices of order 3 such that |A| = -1 and |B| =...

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  17. If lambda = -2, determine the value of |(0,2lambda,1),(lambda^(2),0,3l...

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  18. Determine the roots of the equation |(1,4,20),(1,-2,5),(1,2x,5x^(2))|=...

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  19. Verify that det (AB) = (det A) (det B) for A=[(4,3,-2),(1,0,7),(2,3...

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  20. Using cofactors of elements of second row, evaluate |A|, where A = [(5...

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