Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | A Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
pls help thanks
Date Posted: 3 years ago
Views: 187
See 1 Answer
Recall the property :
tan(A + B) = (tan A + tan B) / (1 - tan A tan B)
So, (tan 45° + tan 15°) / (1 - tan 45° tan 15°)
(A here = 45° and B = 15°)
= tan(45° + 15°)
= tan 60°
= √3 (recall your special angles)
tan(A + B) = (tan A + tan B) / (1 - tan A tan B)
So, (tan 45° + tan 15°) / (1 - tan 45° tan 15°)
(A here = 45° and B = 15°)
= tan(45° + 15°)
= tan 60°
= √3 (recall your special angles)
360 Tutoring Program