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![[Post New]](/templates/default/images/icon_minipost_new.gif) 18 Mar 2008 15:07:09 IST
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the inverse of the matrix 2 -3 is ? -4 2
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"If u win u need not have to explain and if u lose thn u should not be there to explain"
-Adolf Hitler |
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18 Mar 2008 15:31:06 IST
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commn yaar please reply
i knew d method few months ago but its now washed away.
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"If u win u need not have to explain and if u lose thn u should not be there to explain"
-Adolf Hitler |
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18 Mar 2008 15:58:34 IST
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inverse of a matrix=adjoint of d matrix/det value adjoint here is 2 3 4 2 n det value is-8 thus sustitutin them u get d ansewr
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don't walk as if u rule d world
walk as if u dont care who rules d world
-this is knw as attitude
B who u r and say wat u feel ......
coz those who mind don't matter ........
and those who matter dont mind ......... :)
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18 Mar 2008 16:18:09 IST
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yea deedee is right.. to find the adjoint - take the cofactor matrix n the transpose of it... generally for a square matrix of order 2, u can find the adj directly interchange first n last no. then put - sign in the second n third no.s
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18 Mar 2008 17:07:53 IST
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this method is not accepted in board examination
for boards find it using AA^ -1 =I
for entrance test above method is useful
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18 Mar 2008 17:34:53 IST
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chemical tester
who said this method is not applicable...
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all the best ... |
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18 Mar 2008 23:44:15 IST
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thnks very much
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