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CBSE Class 12-science Answered

How to find inverse of a matrix ?

Asked by NAKSHATRA | 10 May, 2014, 12:25: PM
answered-by-expert Expert Answer
 
F o r space I n v e r s e space o f space a n y space m a t r i x space A space e x i s t s space comma space open vertical bar A close vertical bar not equal to 0 A to the power of minus 1 end exponent equals fraction numerator a d j open parentheses A close parentheses over denominator open vertical bar A close vertical bar end fraction R e f e r space t o space t h e space N C E R T space b o o k space f o r space c l e a r space e x p l a i n a t i o n space f o r space c a l c u l a t i n g space t h e space A d j open parentheses A close parentheses
Answered by Avinash Soni | 11 May, 2014, 11:56: AM

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CBSE 12-science - Maths
how to solve the adjoint of 3×3 matrix
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Asked by rahulsharmaaps4 | 03 Jan, 2023, 10:46: AM
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CBSE 12-science - Maths
Solve only by using elementary operations not Adjoints:
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Asked by Gounshi | 01 Jun, 2020, 05:07: PM
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CBSE 12-science - Maths
An amont of 600 crores is spent by the Government in 3 Schemes (A,B,C). Now twice the amount spent on Scheme C together with the amount spent on Scheme A is Rs. 500 crores. Three times the amount spent on Scheme A together with the amount spent on Scheme B and Scheme C is Rs. 1200 crores.Find the amount spent on each scheme using matrices.Read more on Sarthaks.com - https://www.sarthaks.com/547624/an-amont-of-600-crores-is-spent-by-the-government-in-3-schemes-a-b-c
Asked by neerajnirupammohanty95 | 28 Apr, 2020, 10:15: AM
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CBSE 12-science - Maths
find a^-1 using elementary row operation of  a=  open square brackets table row cell negative 1 end cell 2 1 row 1 2 3 row 3 1 3 end table close square brackets  
Asked by spd231624 | 04 May, 2019, 09:54: PM
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CBSE 12-science - Maths
solve the following system of linear equations using matrix method 2x-y-z=7,3x+y-z=7,x+y-z=3  
Asked by prashubh2000 | 25 Apr, 2019, 11:31: AM
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CBSE 12-science - Maths
Solve by matrix method: 2x+y+2z=5, x-y-z=0, x+2y+3z=5.
Asked by ppgm11patil | 29 Oct, 2018, 02:21: PM
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CBSE 12-science - Maths
find inverse of matrix using elementary row operation(ignore absence of bracket) 0   1     2 1   2     3 3   1     1
Asked by haroonrashidgkp | 31 Mar, 2018, 12:12: PM
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CBSE 12-science - Maths
find inverse of matrx using elementary row operation (i)   1     2        2    -1 ii )    2      5        -3      1 ignore ithe absence of braclet and consider it in square bracket also sate the key method to find matrix
Asked by haroonrashidgkp | 26 Mar, 2018, 09:11: PM
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CBSE 12-science - Maths
Define invertible matrix with example.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Maths
Find , if it exist, given
Asked by Topperlearning User | 29 Apr, 2016, 07:51: AM
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