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Prove that |[a-b-c,2a,2a],[2b, b-c-a, 2b...

Prove that `|[a-b-c,2a,2a],[2b, b-c-a, 2b],[2c, 2c, c-a-b]|= (a+b+c)^3`.

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MODERN PUBLICATION-TEST PAPER 8-EXERCISE
  1. Express A=[[x,a,b],[a,y,c],[b,c,z]] as the sum of a symmetric and a sk...

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  2. Find the inverse of [(1,1,2),(0,1,2),(1,2,1)] using elementary operati...

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  3. Prove that |[a-b-c,2a,2a],[2b, b-c-a, 2b],[2c, 2c, c-a-b]|= (a+b+c)^3.

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  4. Find the inverse of the following matrix [{:(1,1,2),(0,1,2),(1,2,1):}]...

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  5. Prove that the following. [[a,b,c],[x,y,z],[p,q,r]]=[[y,b,q],[x,a,p],[...

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  6. Examine the contiunity of the the following functions at indicated poi...

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  7. Differentiate : (sec x+ tan x)^cot x.

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  8. If y=e^(ax)sinbx show that y2-2ay1+(a^2+b^2)y=0.

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  9. Prove the inequality x^2e^(-x^2) le e^(-1),x in R.

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  10. Find the interval in which y=(x-1)^2(x+2) is : (i) increasing (ii)...

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  11. Evaluate : int dx/(x(x^4+1))

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  12. Evaluate : int dx/sqrt (x^2+8x)

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  13. Evaluate : int(0)^(pi/2) e^x cos x dx .

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  14. From the differential equation whose general solution is y=asint+be^t.

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  15. Find the unit vector perpendicular to the plane ABC, where the positio...

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  16. Show that (vec(a)-vec(b))xx(vec(a)+vec(b))=2(vec(a)xxvec(b)).

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  17. The direction cosines of a straight line in two neighbouring positions...

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  18. Find the equation of the plane Passing through the intersection of the...

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  19. Find the equation of the straight line perpendicular to the line (x-2)...

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  20. Exaniming consistency and solvability, solve the following equations b...

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