I solve these two equations and I got x=51.65degree but in my book x=128.35

so Iam confused

the equations are:

54.684=F Cos x...........(1)

69.313=F Sin x.............(2)

Results 1 to 6 of 6

- May 31st 2013, 10:29 AM #1

- Joined
- Apr 2013
- From
- iraq
- Posts
- 5

- May 31st 2013, 11:08 AM #2

- Joined
- Apr 2005
- Posts
- 19,240
- Thanks
- 2835

- May 31st 2013, 11:24 AM #3

- Joined
- Apr 2013
- From
- iraq
- Posts
- 5

- May 31st 2013, 12:44 PM #4

- Joined
- Apr 2005
- Posts
- 19,240
- Thanks
- 2835

## Re: Im I right??

So your equations are F cos(x)= -54.684 and F sin(x)= 69.313?

Then clearly 51.65 degrees cannot be correct. I presume neglecting the negative was your error in doing the calculation and you see now that

128.35 degrees is correct? (Actually, I get 128.27 degrees.)

- Jun 1st 2013, 12:27 AM #5

- Joined
- Apr 2013
- From
- iraq
- Posts
- 5

- Jun 1st 2013, 12:53 AM #6