Using elementary transformations, find t...

Using elementary transformations, find the inverse of the matrix `A = [[ 8, 4, 3 ], [ 2, 1, 1 ], [ 1, 2, 2 ]]` and use it to solve the following system of linear equations : `8x+4y+3z=19` `2x+y+z=5` `x+2y+2z=7`

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Solve the following system of linear equations using matrices : x - 2y = 10, 2x + y + 3z =8, -2y + z =7

Using matrices, solve the following system of linear equations: x - y+2z=7 ; 3x+4y- 5z=-5 ; 2x - y+3z=12

Solve the following system of linear equations by matrix method: 2x+3y+3z=1,2x+2y+3z=2,x-2y+2z=3

Using matrix method, solve the following system of linear equations. 3x+4y+2z=8, 2y-3z=3 and x-2y+6z=-2

Solve the following system of linear equations using matrices : x-2y=10,2x-y-z=8,-2y+z=7

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Solve the following system of linear equations by Cramers rule: 6x+y-3z=5,\ \ x+3y-2z=5,\ \ 2x+y+4z=8

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions

A and B throw a pair of dice alternately. A wins the game if he gets a...
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Prove that |[yz-x^2,zx-y^2,xy-z^2],[zx-y^2,xy-z^2,yz-x^2],[xy-z^2,yz-x...
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Using elementary transformations, find the inverse of the matrix A = [...
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Three persons A, B and C apply for a job of Manager in a Private Compa...
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Solve for : 2\ tan^(-1)(cosx)=tan^(-1)(2\ cos e c\ x) .
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int(-1)^2|x^3-x|dxdot
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Find the general solution of the differential equation (1+y^(2))+(x-e^...
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Show that the vectors vec a , vec b and vec c are coplanar if vec a+...
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Find the vector and Cartesian equations of the line through the point ...
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The monthly incomes of Aryan and Babban are in the ratio 3 : 4 and the...
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The two vectors hat j+ hat k and 3 hat i- hat j+4 hat k represent the...
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Prove that: tan^(-1)1/5+tan^(-1)1/7+tan^(-1)1/3+tan^(-1)1/8=pi/4
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Find : int((3sintheta-2)costheta)/(5-cos^2theta-4sintheta)dthetathet...
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Evaluate : int0^pie^(2x)dotsin(pi/4+x)dx
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If x=sint and y=sinp t , prove that (1-x^2)(d^2y)/(dx^2)-x(dy)/(dx)+p^...
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Differentiate tan^(-1)((sqrt(1+x^2)-1)/x) with respect to sin^(-1)...
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If A=(cosalpha-sinalpha0sinalphacosalpha0 0 0 1), find a d jdotA and v...
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If a ,b and c are all non-zero and |[1+a,1, 1],[ 1,1+b,1],[1,1,1+c]|=0...
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Find the values of a and b , if the function f defined by f(x)={x^2...
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