1.
Let P=[aij]P = [a_{ij}] be a 3×33 \times 3 matrix and let Q=[bij]Q = [b_{ij}], where bij=2i+jaijb_{ij} = 2^{i+j} a_{ij} for 1i,j31 \le i, j \le 3. If the determinant of PP is 22, then the determinant of the matrix QQ is