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प्रश्न
Write the element a12 of the matrix A = [aij]2 × 2, whose elements aij are given by aij = e2ix sin jx.
उत्तर
Given that of aij = e2ix sin jx.
Substitute i = 1 and j = 2
Thus `a_12=e^(2xx1xxx) sin(2xx x)=e^(2x)sin(2x)`
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