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If A=[{:(3,-4),(1,-1):}] then show that ...

If `A=[{:(3,-4),(1,-1):}]` then show that `A^(k)=[{:(1+2k,-4k),(k,1-2k):}],k epsilon N`

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MODERN PUBLICATION-TEST PAPER 7-EXERCISE
  1. An animal feed company must produce 200kg of a mixture consisting of i...

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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/c)or(ab...

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  3. If A=[{:(3,-4),(1,-1):}] then show that A^(k)=[{:(1+2k,-4k),(k,1-2k):}...

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  4. Express as a sum of a symmetric and a skew symmetric matrix: [[x,a,b],...

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  5. Prove the following : [[sinalpha,cosalpha,cos(alpha+delta)],[sinbeta,c...

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  6. Test differentiability of the following function at the indicated poin...

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  7. if x=e^(t)sin t and y=e^(t)cos t, then prove that (x+y)^(2)(d^(2)y)/dx...

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  8. If sin (x + y) = y cos (x + y) then prove that dy/dx =-(1 + y^2)/y^2

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  9. If tangents are drawn from the origin to the curve y = sin x then sho...

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  10. Test the function y = (x - 5)^5( x + 2)^2 for extreme values.

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  11. Evaluate : int ((sinxcosx)/(sin2x) - 2sinx+3)dx .

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  12. int0^(pi/2)(cosxdx)/((sinx+1)(sinx+2))

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  13. Solve : (x + 2y^3)dy/dx = y.

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  14. Find the general solution of dy/(du) = u+1/sqrtu + 6u + 5.

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  15. Prove the following by vector method. The diagonals of a rhombus are a...

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  16. Find the equation of the plane passing through the line of intersectio...

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  17. Find the image of the point (3,5,7) with respect to the plane 2x+y+z=6...

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  18. Obtain the equation of the line through the point (1, 2, 3) and parall...

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  19. Find the inverse of the following matrices using elementary transforma...

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  20. Prove the following: [[b^2-ab,b-c,bc-ac],[ab-a^2,a-b,b^2-ab],[bc-ac,...

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