Question

Pls tell this with steps​

Answer 1

Step-by-step explanation:

tan(90-85)tan(90-75)tan(60)tan75tan85

cot(85)cot(75)tan(60)tan(75)tan(85)

cos85 cos75 tan60 sin75 sin85

sin85. sin75. cos75 cos85

tan60=√3

Answer 2

Step-by-step explanation:

tan(90-5) . tan(90-15) . tan60 . tan75 . tan85

=cot85 . cot75 . tan60 . tan75 . tan85

=tan60

=√3