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[Post New]23 Apr 2008 08:24:37 IST
    Subject: help needed
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nics (166)

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frnds i have jus started matrices and determinants , im not able to understand this property . will anyone shall explain me bout this, with an example
The value of a determinant is unaltered if to the elements of row(or column) the same multiplies of the corresponding elements of any other row(or column) are added.
    
[Post New]23 Apr 2008 08:58:50 IST
    Subject: help needed
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nics (166)

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plz help me.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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[Post New]23 Apr 2008 09:37:46 IST
    Subject: Re:help needed
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viswanath (466)

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consider the column C1(with elements a1, a2, a3) in a 3x3 matrix. let the elements of C2 be b1, b2, b3. if u multiply each element of C2 with a
constant(say 5) n add em to the corresponding elements of C1, the value of the determinant is not changed, i.e., if u change the elements of C1 to (a1+5*b1, a2+5*b2, a3+5*b3) the det value is unaltered. got it?
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"There are no accidents in my philosophy. Every effect must have its cause. The past is the cause of the present, and the present will be the cause of the future. All these are links in the endless chain stretching from the finite to the infinite." - Abraham Lincoln
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[Post New]23 Apr 2008 18:02:30 IST
    Subject: help needed
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nics (166)

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thanx viswanath
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