Pls tell this with steps
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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
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Step-by-step explanation:
tan(90-5) . tan(90-15) . tan60 . tan75 . tan85
=cot85 . cot75 . tan60 . tan75 . tan85
=tan60
=√3
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