Q. F=[1−223] and E=[03−1251]Let H=FE. Find H.H=
Matrix Multiplication: To find the matrix H which is the product of matrices F and E, we need to perform matrix multiplication. The matrix F is a 2×2 matrix and the matrix E is a 2×3 matrix. The product of a 2×2 matrix and a 2×3 matrix will result in a 2×3 matrix. Let's denote the elements of matrix H as F1, where F2 is the row index and F3 is the column index. We will calculate each element of H using the formula for matrix multiplication: F5.
Calculate h11: First, we calculate the element h11 of matrix H. This is the element in the first row and first column of the resulting matrix. Using the formula for matrix multiplication, we have:h11=f11×e11+f12×e21h11=1×0+2×3h11=0+6h11=6
Calculate h12: Next, we calculate the element h12 of matrix H. This is the element in the first row and second column of the resulting matrix. Using the formula for matrix multiplication, we have:h12=f11×e12+f12×e22h12=1×(−1)+2×2h12=−1+4h12=3
Calculate h13: Now, we calculate the element h13 of matrix H. This is the element in the first row and third column of the resulting matrix. Using the formula for matrix multiplication, we have:h13=f11×e13+f12×e23h13=1×5+2×1h13=5+2h13=7
Calculate h21: We move on to calculate the element h21 of matrix H. This is the element in the second row and first column of the resulting matrix. Using the formula for matrix multiplication, we have:h21=f21⋅e11+f22⋅e21h21=(−2)⋅0+3⋅3h21=0+9h21=9
Calculate h22: Next, we calculate the element h22 of matrix H. This is the element in the second row and second column of the resulting matrix. Using the formula for matrix multiplication, we have:h22=f21⋅e12+f22⋅e22h22=(−2)⋅(−1)+3⋅2h22=2+6h22=8
Calculate h23: Finally, we calculate the element h23 of matrix H. This is the element in the second row and third column of the resulting matrix. Using the formula for matrix multiplication, we have:h23=f21×e13+f22×e23h23=(−2)×5+3×1h23=−10+3h23=−7
Complete Matrix H: Now that we have calculated all the elements of matrix H, we can write down the complete matrix H as follows:H = \left[\begin{array}{ccc}\(\newlineh_{11} & h_{12} & h_{13}, (\newline\)h_{21} & h_{22} & h_{23}\end{array}\right]\)H = \left[\begin{array}{ccc}\(\newline6 & 3 & 7, (\newline\)9 & 8 & -7\end{array}\right]\)
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