Question

Q.10 if a= 3f +45-5k and b= 21 +41 - 2k .find ab
1. 20 units
2. 32 units
3.0
4 none of these

Answer 1

We have, A = < b m a t r i x > and B = < b m a t r i x > Now, AB = < b m a t r i x >< b m a t r i x > AB = < b m a t r i x > AB = < b m a t r i x > Now, .........

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