How do I solve this?

-0.5 = sin((Pi*x)/12)

Sin is -0.5 when the angle is 30. Since it is negative, angles are 210 and 330.

I get eventually 7,11,14,23...

Which are wrong somehow. Please help! Thx

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- Jul 20th 2006, 08:21 AMclassicstringsTrig equations
How do I solve this?

-0.5 = sin((Pi*x)/12)

Sin is -0.5 when the angle is 30. Since it is negative, angles are 210 and 330.

I get eventually 7,11,14,23...

Which are wrong somehow. Please help! Thx - Jul 20th 2006, 08:47 AMgalactus
Solve for x:

, n=0,1,2,...... - Jul 20th 2006, 09:39 AMThePerfectHackerQuote:

Originally Posted by**classicstrings**

Then, then the two coterminal angles are,

Then all solutions are,

But since you have,

All solutions are,

Thus, (mutiply by reciprocal)

- Jul 20th 2006, 09:53 AMCaptainBlackQuote:

Originally Posted by**ThePerfectHacker**

- Jul 25th 2006, 02:00 AMclassicstrings
Thanks a lot guys! I realised today when I logged on that you changed the updated the number of (1800+) members sign too!