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Home » Which of the given values of and make the following pair of matrices equal (A) (B) Not possible to find (C) (D)
Which of the given values of x and y make the following pair of matrices equal \left[\begin{array}{cc}3 x+7 & 5 \\ y+1 & 2-3 x\end{array}\right]=\left[\begin{array}{cc}0 & y-2 \\ 8 & 4\end{array}\right] (A) x=\frac{-1}{3}, \quad y=7 (B) Not possible to find (C) y=7, x=\frac{-2}{3} (D) x=\frac{-1}{3}, y=\frac{-2}{3}
CBSE | Class 12 | Exercise 3.1 | Maths | Matrices | NCERT
Which of the given values of x and y make the following pair of matrices equal \left[\begin{array}{cc}3 x+7 & 5 \\ y+1 & 2-3 x\end{array}\right]=\left[\begin{array}{cc}0 & y-2 \\ 8 & 4\end{array}\right] (A) x=\frac{-1}{3}, \quad y=7 (B) Not possible to find (C) y=7, x=\frac{-2}{3} (D) x=\frac{-1}{3}, y=\frac{-2}{3}

The correct option is Option (B).

equating all corresponding elements, we get

3 x+7=0=>x=-7 / 3

y-2=5=>y=7

y+1=8=>y=7

2-3 x=4=>x=-2 / 3

i

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