help with further trig question (1 Viewer)

MysteryMarkWarrior

New Member
Joined
Mar 6, 2018
Messages
5
Gender
Male
HSC
N/A
Hey how would this question be solved?

sin(A + B - C) cos(A - B + C) + cos (A + B - C) sin(A - B + C)
 

Ted_

New Member
Joined
Jun 3, 2017
Messages
8
Location
Greenacre
Gender
Male
HSC
2018
sin(a + b) = sin(a)cos(b) + cos(b)sin(a)

Similarly:

sin(A + B - C)cos(A - B + C) + cos(A + B - C)sin(A - B + C) = sin[(A + B - C)+(A - B + C)]
= sin(2A)

Here's the answer, little late sorry
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top