jsamplonius
New member
- Joined
- Apr 11, 2015
- Messages
- 5
I was given this question for review for a test and I could not figure out how to simplify it properly.
sin(pi/2 - x) + sin(pi - x) + sin(3pi/2 - x) + sin (2pi - x)
i had given it a try but it was wrong this is what i had.
=(sin pi/2) - sinx + (sin pi) - (sin 3pi/2) - sinx + (sin 2pi) - sinx
= (sin pi/2) + (sin pi) + (sin 3pi/2) + (sin 2pi) - 4sinx
= (sin 5pi) - (4sinx)
my teacher told me this was wrong and i don't know any other way to do it. please show all the steps and the answer if it is found. thanks.
sin(pi/2 - x) + sin(pi - x) + sin(3pi/2 - x) + sin (2pi - x)
i had given it a try but it was wrong this is what i had.
=(sin pi/2) - sinx + (sin pi) - (sin 3pi/2) - sinx + (sin 2pi) - sinx
= (sin pi/2) + (sin pi) + (sin 3pi/2) + (sin 2pi) - 4sinx
= (sin 5pi) - (4sinx)
my teacher told me this was wrong and i don't know any other way to do it. please show all the steps and the answer if it is found. thanks.