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|{:(a^2,ab,ac),(ab,b^2,bc),(ca,bc,c^2):}...

`|{:(a^2,ab,ac),(ab,b^2,bc),(ca,bc,c^2):}|=`?`

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If A=[{:(0,c,-b),(-c,0,a),(b,-a,0):}] and B=[{:(a^(2),ab,ac),(ab,b^(2),bc),(ac,bc,c^(2)):}] , then (A+B)^(2)= (a) A (b) B (c) I (d) A^(2)+B^(2)

Show that, |{:(a^2+10,ab,ac),(ab,b^2+10,bc),(ca,bc,c^2+10):}| is divisible by 100 .

Show that |{:(a^(2)+1,ab,ac),(ab,b^(2)+1,bc),(ca,bc,c^(2)+1):}|=1+a^(2)+b^(2)+c^(2)

Prove that, abs((a^2+1,ab,ac),(ab,b^2+1,bc),(ca,cb,c^2+1)) =1+ a^2+b^2+c^2 .

Prove that, abs((-a^2,ab,ac),(ba,-b^2,bc),(ca,cb,-c^2)) =4 a^2b^2c^2 .

"If "f(x)=|{:(x+a^(2),ab,ac),(ab, x+b^(2),bc),(ac,bc, x+c^(2)):}|," then prove that " f'(x)=3x^(2)+2x(a^(2)+b^(2)+c^(2)) .

|{:(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,a^2,a^3+bc),(b,b^2,b^3+ca),(c,c^2,c^3+ab):}|=(a-b)(b-c)(c-a)(abc+bc+ca+ab)

|{:(1,a,bc),(1,b,ca),(1,c,ab):}|=|{:(1,a,a^2),(1,b,b^2),(1,c,c^2):}|

|{:(1,a,bc),(1,b,ca),(1,c,ab):}|

CHHAYA PUBLICATION-DETERMINANT -EXERCISE 2B
  1. |{:(1+a,1,1),(1,1+a,1),(1,1,1+a):}|=a^3+3a^2

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

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  3. |{:(a^2,ab,ac),(ab,b^2,bc),(ca,bc,c^2):}|=?

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  4. |{:(-1,b,c),(a,-1,c),(a,b,-1):}|=(a+1)(b+1)(c+1)((a)/(a+1)+(b)/(b+1)+(...

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  5. |{:(x^2+y^2+1,x^2+2y^2+3,x^2+3y^2+4),(y^2+2,2y^2+6,3y^2+8),(y^2+1,2y^2...

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  6. |{:(" "3a," "-a+b,-a+c),(a-b," "3b," "c-b),(a-c," "b-c," "3c):}|...

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  7. |{:(x,a,b),(a,x,b),(a,b,x):}|=(x-a)(x-b)(x+a+b)

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  8. |{:(b+c,a-b,a),(c+a,b-c,b),(a+b,c-a,c):}|=3abc-a^3-b^3-c^3

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  9. Prove |{:(1,a^2+bc,a^3),(1,b^2+ca,b^3),(1,c^2+ab,c^3):}|=-(a-b)(b-c)(c...

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  10. |{:(a^2,a^2-(b-c)^2,bc),(b^2,b^2-(c-a)^2,ca),(c^2,c^2-(a-b)^2,ab):}|=(...

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  11. |{:((a+1)(a+2),a+2,1),((a+2)(a+3),a+3,1),((a+3)(a+4),a+4,1):}|=-2

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  12. Show that the following determinant is a perfact square : |{:(1,a,a^...

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  13. if x+y+z = 0 then prove that |{:(x,y,z),(x^2,y^2,z^2),(y+z,z+x,x+y):}|...

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  14. |{:(1,1,1),(x,y,z),(x^3,y^3,z^3):}|=0

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  15. |{:(x," "4,-2),(4," "x,-2),(4,-2," "x):}|=0

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  16. |{:(x,a,a),(a,x,b),(b,b,x):}|=0

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  17. |{:(x+1," "2," "3),(" "1,x+1," "3),(" "3,-6,x+1):}|=0

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  18. |{:(a-x," "b," "c),(" "b,c-x," "a),(" "c," "a,b-x):}|=0

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  19. |{:(" "x," "c+x," "b+x),(" "c+x," "x," "a+x),(" "b+x," "a+x," ...

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  20. |{:(2-x," "2," "3),(" "2,5-x," "6),(" "3," "4,10-x):}|=0

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