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Find the value of following equation tan100 +tan125+tan 100 tan125

 Find the value of following equation tan100 +tan125+tan 100 tan125

Grade:11

1 Answers

Aditya Gupta
2081 Points
4 years ago
hello tanisha.

Tan ( 100° + 125° ) = tan 225°  (but tan 225° = tan ( 180° + 45° ) = tan 45° = 1 )
 ( tan 100° + tan 125° ) / ( 1 - tan 100° tan 125° ) = 1 
 tan 100° + tan 125° = 1 - tan 100° tan 125° 
 tan 100° + tan 125° + tan 100° tan 125° = 1
kindly approve :)

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