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Without expanding the determinant , prov...

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):}|`

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Without expanding the determinant, prove that (i) |{:(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)):}| (ii) |{:(ax,by,cz),(x^(2),y^(2),z^(2)),(1,1,1):}|=|{:(a,b,c),(x,y,z),(yz,zx,xy):}| (iii) |{:(1,bc,b+c),(1,ca,c+a),(1,ab,a+b):}|=|{:(1,a,a^(2)),(1,b,b^(2)),(1,c,c^(2)):}|

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

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

|(1//a,a^(2),bc),(1//b,b^(2),ca),(1//c,c^(2),ab)|=

Without expanding the determinant show that |(b+c,c+a,a+b),(c+a,a+b,b+c),(a+b,b+c,c+a)|=2|(a,b,c),(b,c,a),(c,a,b)|

|(a,b,c),(a^(2),b^(2),c^(2)),(bc,ca,ab)|=

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

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

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

SRISIRI PUBLICATION-QUESTION PAPER -Section B
  1. IF A=[{:(3,-3,4),(2,-3,4),(0,-1,1):}] then show that A^-1=A^3.

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  2. S.T |(1,a,a^2),(1,b,b^2),(1,c,c^2)| = (a-b)(b-c)(c-a).

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  3. Without expanding the determinant , prove that |{:(a,a^2,bc),(b,b^2,ca...

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  4. Show that |(b+c,c+a,a+b),(a+b,b+c,c+a)(a,b,c)|=a^(3)+b^(3)+c^(3)-3abc.

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  5. If diagA=[a(1),a(2),a(3)], then for any integer n ge 1 show that A^(n)...

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  6. If ABCDEF is a regular hexagon with centre O , then P.T bar(AB)+bar(A...

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  7. If the points whose position vectors are 3bar(i) -2bar(j)-bar(k), 2bar...

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  8. Find the vector equation of the plane passing through the points. 4bar...

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  9. In the two dimensional plane, prove by using vector methods, the equat...

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  10. If bara,barb,barc are non-coplaner, then show that the vectors bara -b...

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  11. Find the area of the triangle formed with the points A(1,2,3), B(2,3,1...

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  12. If bar(a)=2bar(i)+bar(j)-bar(k), bar(b)=-bar(i)+2bar(j)-4bar(k), bar(c...

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  13. Prove that angle in a semi circle is a rightangle by using Vector meth...

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  14. If (sin(alpha+beta))/(sin(alpha-beta)) = (a+b)/(a-b), then prove that ...

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  15. Show that sin A= (sin 3A) /(1+2 cos 2A). Hence find the value of sin 1...

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  16. Show that 1/(sin 10^(@)) - (sqrt(3))/(cos 10^(@)) = 4.

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  17. Show that sin ^(4). (pi)/(8)+ sin ^(4) .(3pi)/(8) sin ^(4). (5pi)/(8)...

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  18. Prove that (1+cos""pi/10)(1+cos""(3pi)/10)(1+cos""(7pi)/10)(1+cos""(9p...

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  19. If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acut...

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  20. If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acut...

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