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|(1,a^(2)+bc,a^(3)),(1,b^(2)+ac,b^(3)),(...

`|(1,a^(2)+bc,a^(3)),(1,b^(2)+ac,b^(3)),(1,c^(2)+ab,c^(3))|=-(a-b)(b-c)(c-a)(a^(2)+b^(2)+c^(2))`

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Prove that det[[1,a^(2)+bc,a^(3)1,b^(2)+ca,b^(3)1,c^(2)+ca,c^(3)]]=-(a-b)(b-c)(c-a)(a^(2)+b^(2)+c^(2))det[[1,b^(2)+ca,b^(3)1,c^(2)+ca,c^(3)]]=-(a-b)(b-c)(c-a)(a^(2)+b^(2)+c^(2))

If [[a,a^(2),a^(3)-1b,b^(2),b^(3)-1c,c^(2),c^(3)-1]]=0

[[ Prove that 1+a^(2)+a^(2)b^(2),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+bc+b^(2)c^(2),1+c^(2)+c^(2)]]=(a-b)^(2)(b-c)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-a)^(2)(c-

Show that det[[1,1,1a^(2),b^(2),c^(2)a^(3),b^(3),c^(3)]]=(b-c)(c-a)(a-b)(bc+ca+ab)det[[a^(2),b^(2),c^(2)a^(3),b^(3),c^(3)]]=(b-c)(c-a)(a-b)(bc+ca+ab)det[[a^(2),b^(2),c^(2)a^(3),b^(3),c^(3)]]=(b-c)(c-a)(a-b)(bc+ca+ab)

Prove that : (i) |{:(a,c,a+c),(a+b,b,a),(b,b+c,c):}|=2 abc (ii) 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)

(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)

If |{:(bc-a^(2),ac-b^(2),ab-c^(2)),(ac-b^(2),ab-c^(2),bc-a^(2)),(ab-c^(2),bc-a^(2),ac-b^(2)):}|=k(a^(3)+b^(3)+c^(3)-3abc)^(l) then the value of (k, l) is

If a,b,c are in G.P.,prove that: a(b^(2)+c^(2))=c(a^(2)+b^(2))A^(2)b^(2)c^(2)((1)/(a^(3))+(1)/(b^(3))+(1)/(c^(3)))=a^(3)+b^(3)+c^(3)((a+b+c)^(2))/(a^(2)+b^(2)+c^(2))=(a+b+c)/(a-b+c)(1)/(a^(2)-b^(2))+(1)/(b^(2))=(1)/(b^(2)-c^(2))(a+2b=2c)(a-2b+2c)=a^(2)+4c^(2)

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)):}|

The number of triplets (a, b, c) of positive integers satisfying the equation |(a^(3)+1,a^(2)b,a^(2)c),(ab^(2),b^(3)+1,b^(2)c),(ac^(2),bc^(2),c^(3)+1)|=30 is equal to

CBSE COMPLEMENTARY MATERIAL-MATRICES AND DETERMINANTS-FOUR MARK QUESTIONS
  1. Find the value of k, if: |(a+b,b+c,c+a),(b+c,c+a,a+b),(c+a,a+b,b+c)|=k...

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  2. If x,y and zinR, and Delta=|(x,x+y,x+y+z),(2x,5x+2y,7x+5y+2z),(3x,7x...

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  3. If |(1,a^2,a^4),(1,b^2,b^4),(1,c^2,c^4)|=k|(1,1,1),(a,b,c),(a^2,b^2,c^...

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  4. Evaluate the following: |[1,,a^2-bc],[1, b,b^2-ac],[1,c,c^2-ab]|

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  5. |(1,a^(2)+bc,a^(3)),(1,b^(2)+ac,b^(3)),(1,c^(2)+ab,c^(3))|=-(a-b)(b-c)...

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  6. Using properties of determinants, prove that following: |"a"+"b"+2...

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  7. |[a,b,c],[a-b,b-c,c-a],[b+c,c+a,a+b]|=a^3+b^3+c^3-3abc

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  8. Prove that : (i) |{:(a,c,a+c),(a+b,b,a),(b,b+c,c):}|=2 abc (ii) Pr...

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  9. |(b+c,c+a,a+b),(c+a,a+b,b+c),(a+b,b+c,c+a)|=2(3abc-a^(3)-b^(3)-c^(3))

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  10. Prove that | ((b+c)^2, a^2,a^2),(b^2,(c+a)^2,b^2),(c^2,c^2,(a+b)^2)|=2...

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  11. Given A=[(0,-1,2),(2,-2,0)]andB-[(0,1),(1,0),(1,1)]. Find the product ...

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  12. Using properties of determinants, solve the following for x: |x-2 ...

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  13. FInd x when |[x+a, a^2, a^3] , [x+b, b^2, b^3] , [x+c, c^2, c^3]|=0 wh...

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  14. Express the matrix [3-2-4 3-2-5-1 1 2] as the sum of a symmetric and s...

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  15. If x=-4 is a root of a Delta=|(x,2,3),(1,x,1),(3,2,x)|=0, then find th...

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  16. Using properties of determinants. Find the value of 'x' |(4-x,4+x,4+...

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  17. prove that |(1,x,x+1),(2x,x(x-1),x(x+1)),(3x(1-x),x(x-1)(x-2),x(x+1)(...

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  18. If f(x)=|a-1 0a x a-1a x^2a x a| , using properties of determinants...

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  19. If A=[(2,-1,1),(-1,2,-1),(1,-1,2)] show that A^(2)-5A+4I=0 Hence fin...

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  20. It A=[(-1,2,0),(-1,1,1),(0,1,0)] show that A^(2)=A^(-1)

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