1.

If △=∣∣∣∣∣∣∣∣∣sinπcos(x+π4)tan(x−π4)sin(x−π4)0ln(xy)cot(x+π4)ln(yx)0∣∣∣∣∣∣∣∣∣, for x∈(0,π)−{π4,3π4},y>0. Then the value of (△+9)=

Answer» If =





sinπcos(x+π4)tan(xπ4)sin(xπ4)0ln(xy)cot(x+π4)ln(yx)0





,
for x(0,π){π4,3π4},y>0. Then the value of (+9)=


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