if the element of a 2 × 3 matrix is given by aij 1/2(3i -4j) find the value of a23
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Given : element of a 2 × 3 matrix is given by aij = 1/2(3i -4j)
To Find : value of a₂₃
Solution:
aij = 1/2(3i -4j)
a₂₃
i = 2
j = 3
= (1/2) ( 3*2 - 4*3)
= (1/2)(6 - 12)
= (1/2)(-6)
= - 3
a₂₃ = - 3
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