Question

Cot (90º-theta)sin (90º-theta)÷cos (90º-theta) = 1

Answer 1

$Let \: ∅ \: be \: theta.$

$= > \frac{ \cot(90 -∅ ). \sin(90 -∅) }{ \cos(90 -∅) }$

$= \frac{tan ∅. \cos( ∅ ) }{ \sin(∅) }$

$= \frac{tan ∅ }{ \tan ∅ }$

$= 1$