1 A 1 B 1 C 1 D 1 E 1 F 2 A 2 B 2 C 2 D 2 E 2 F 2 G 2 H 2 I 2 J 2 K 2 L 2 M 3 A 3 B 3 C 3 D 3 E 4 A 4 B 4 C 4 D 4 E 4 F 5 6 7 8 A 8 B 8 C 8 D 8 E 9 10 11 12 13 14 15 16 17 18 19 20 21

Q. 8 C5.0( 1 Vote )

Solve the followi

Class 12th RD Sharma - Volume 1 8. Solution of Simultaneous Linear Equations

Answer :

A = B =

AB =

AB =

Now, we can see that it is AB = 11I. where I is the unit Matrix

Or, A ^{– 1} =

Now the given equation can be written as:

A X B

Or, X = A ^{– 1}B

=

=

X =

Hence, x = 4,y = – 3 and z = 1

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