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CBSE Class 12-science Answered

Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.
Asked by vatsala srivastava srivastava | 16 Jun, 2014, 09:51: PM
answered-by-expert Expert Answer
W e space d o n t space d i v i d e space m a t r i c e s comma space i n s t e a d space w e space m u l t i p l y space t h e space i n v e r s e. T h u s comma space A space d i v i d e d space b y space B space equals A over B equals A cross times B to the power of minus 1 end exponent comma space w h e r e comma space B to the power of minus 1 end exponent space m e a n s space t h e space i n v e r s e space o f space B. T h e space i n v e r s e space o f space B space e x i s t s space i f space a n d space o n l y space i f space open vertical bar B close vertical bar not equal to 0 T h e space p r o d u c t space A cross times B to the power of minus 1 end exponent space e x i s t s space i f space a n d space o n l y space i f space t h e space n u m b e r space o f space c o l u m n s space o f space t h e space m a t r i x space A space i s space e q u a l space t o space t h e space n u m b e r space o f space c o l u m n s space o f t h e space m a t r i x space A. T h e r e f o r e comma space t h e space n o t a t i o n space i s space a m b i g u o u s comma space e v e n space i f space open vertical bar B close vertical bar not equal to 0
Answered by Vimala Ramamurthy | 17 Jun, 2014, 11:55: AM

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CBSE 12-science - Maths
Example 17 Solve the following system of equations by matrix method. 3x-2y+3z =8 2x+y-z=1 4x-3y+2z = 4
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CBSE 12-science - Maths
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CBSE 12-science - Maths
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CBSE 12-science - Maths
quikly
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CBSE 12-science - Maths
value of X if [xy+2z-3]+[y 4 5]=[4 9 12]
Asked by ronitrawat267 | 30 Sep, 2020, 09:16: AM
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CBSE 12-science - Maths
Let  f (x) = x2  – 5 x + 6  and  A =            1 1 0 2 1 3 2 0 1  , then  f (A) is equal to : (A)                   5 4 4 1 1 10 1 1 3 (B)                   5 4 3 1 1 10 1 1 3 (C)                  5 4 3 0 1 10 0 1 3 (D)      
Asked by vikaskumawat037 | 09 Sep, 2020, 09:58: PM
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CBSE 12-science - Maths
[a-b. 2a+c]=[-1 5].  [2a-b. 3c+2]=[0 13]. Find the a b c and d
Asked by madankumar47 | 02 Jun, 2020, 12:49: PM
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CBSE 12-science - Maths
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