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  • Explain solution RD Sharma class 12 chapter 4 Algebra of Matrices exercise Fill in the blank question 8 maths

Explain solution RD Sharma class 12 chapter 4 Algebra of Matrices exercise Fill in the blank question 8 maths

Answers (1)

Answer:

 AB3×3 = 4.

Hint:

 Use the basic multiplication rules

Given:

\left[\begin{array}{ccc} 0 & 2 & 0 \\ 0 & 0 & 3 \\ -2 & 2 & 0 \end{array}\right]\left[\begin{array}{ccc} 1 & 2 & 3 \\ 3 & 4 & 5 \\ 3 & -4 & 0 \end{array}\right]

Solution:

\begin{aligned} &A B=(-2 \times 3)+(2 \times 5)+(0 \times 0)=-6+10+0=10-6=4 \\ &A B_{3 \times 3}=4 \end{aligned}

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Gurleen Kaur

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