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Find the matrix X such that A+3B+X=0, wh...

Find the matrix X such that `A+3B+X=0`, where `A=[(2,6),(5,8)]` and `B=[(1,2),(-2,3)]`

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The correct Answer is:
`[(-5,0),(11,-1)]`
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S CHAND IIT JEE FOUNDATION-MATRICES -UNIT TEST -2
  1. Find the matrix X such that A+3B+X=0, where A=[(2,6),(5,8)] and B=[(1,...

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  2. The simplified form of the rational expression ((x^(2))/(x^(2)-y^(2))-...

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  3. x+y=a and x y=b ,then the value of 1/(x^3)+1/(y^3)

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  4. If a^(2)=(b+c),b^(2)=(c+a),c^(2)=(a+b), then the value of 1/(a+1)+1/(b...

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  5. If a/x+y/b=1 and b/y+z/c=1 , then x/a+c/z will be equal to: (a) 0 (...

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  6. The factors of x^4+x^2+25 are (x^2+3x+5)(x^2-3x+5) (x^2+3x+5)(x^2+3...

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  7. The factors of (a^(2)+36b^(2))^(2)-169a^(2)b^(2) are:

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  8. One of the factors of a^(6)+b^(6)-a^(2)b^(4)-a^(4)b^(2) is

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  9. In a number of three digits the units digit is double the tens' digit....

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  10. A batsmen's average before the last two innings of a seasons was 66. H...

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  11. The solution of the equations: 3(x+3y-1)=2(y-3x+1) and 3(5y-7x-3)=2(...

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  12. Some bananas are to be shared among a number of children. To give each...

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  13. The value of K for which the system of equations x+2y+7=0 and 2x+ky+14...

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  14. Roots of the equations x^(2)+x(2-p^(2))-2p^(2)=0 are

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  15. The roots of the equation 4/(x^(2))=1+3/x are

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  16. Find the value of x if the shaded area is a half of the whole area in ...

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  17. Find two numbers which are such that the sum of the first and twice th...

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  18. If x and y are positive integers that satisfy 1lexle4 and 3x+2yle13, t...

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  19. If 6lexle8 then

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  20. if x^3-1/x^3=14, then x-1/x=

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  21. The LCM of the polynomials (x^(8)-y^(8)) and (x^(4)-y^(4))(x+y) is

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