Find the value of tan 203°+tan 22°+tan 203° tan 22°?

1 Answer
Jun 3, 2018

1

Explanation:

rarr203°+22°=225°

rarrtan(203°+22°)=tan225°=tan(180°+45°)=tan45°=1

rarr(tan203°+tan22°)/(1-tan203°*tan22°)=1

rarrtan203°+tan22°=1-tan203°*tan22°

rarrtan203°+tan22°+tan203°tan22°=1