WOLFRAM COMMUNITY
Connect with users of Wolfram technologies to learn, solve problems and share ideas
Join
Sign In
Dashboard
Groups
People
Message Boards
Answer
(
Unmark
)
Mark as an Answer
WOLFRAM COMMUNITY
Dashboard
Groups
People
0
|
6755 Views
|
4 Replies
|
3 Total Likes
View groups...
Follow this post
Share
Share this post:
GROUPS:
Mathematics
Mathematica
Equation Solving
Solving Cos trigonometric equation
Ahmed Al-Ali
Ahmed Al-Ali
Posted
12 years ago
Could you solve this equation please?
5*Cos[µ]=-1.7677669529663687
and please I need to find the solution in radian measuement and i also don't know what is the procedure that solve it. I am looking forward to receive the answere.
many thanks
POSTED BY:
Ahmed Al-Ali
Reply
|
Flag
4 Replies
Sort By:
Replies
Likes
Recent
1
Bill Simpson
Bill Simpson
Posted
12 years ago
Put this into Wolfram|Alpha (
LINK
):
Solve 5*Cos[x] == -1.7677669529663687
POSTED BY:
Bill Simpson
Reply
|
Flag
0
Ahmed Al-Ali
Ahmed Al-Ali
Posted
12 years ago
My dear friends Nasser and Peter,
I do feel grateful to have thise answers
Thank you very much indeed
POSTED BY:
Ahmed Al-Ali
Reply
|
Flag
1
Peter Bischet
Peter Bischet, I'm retired
Posted
12 years ago
Hi, my dear friend! Do you search the following solutions?
In[13]:= x = ArcCos[-1.7677669529663687/5];
K = x - Pi/2;
Table[(2 i - 1)/2*Pi + (-1)^(i - 1) K, {i, 5}]
Out[15]= {1.93216, 4.35102, 8.21535, 10.6342, 14.4985}
Peter
POSTED BY:
Peter Bischet
Reply
|
Flag
1
Nasser M. Abbasi
Nasser M. Abbasi, student
Posted
12 years ago
eq = 5*Cos[x] == -1.7677669529663687;
sol = FindRoot[eq, {x, 0.1}];
5*Cos[x /. sol]
gives
-1.76776695296637
In[18]:= sol
Out[18]= {x -> 10.6342071636576}
POSTED BY:
Nasser M. Abbasi
Reply
|
Flag
Reply to this discussion
in reply to
Add Notebook
Community posts can be styled and formatted using the
Markdown syntax
.
Tag limit exceeded
Note: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.
Publish anyway
Cancel
Reply Preview
Attachments
Remove
Add a file to this post
Follow this discussion
or
Discard
Group Abstract
Be respectful. Review our
Community Guidelines
to understand your role and responsibilities.
Community Terms of Use
Feedback
Enable JavaScript to interact with content and submit forms on Wolfram websites.
Learn how »