Question

tan 35° tan 40° tan 45° tan 55° tan 50°

Answer 1

cot (90-55)×cot (90-40)×tan55×tan50×1

cot35×cot50×tan55×tan50×1
1×1×1
=1


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Answer 2

The ans is 1

cot55*tan55*cot30tna60*tan 45cot45=1