Quote:

Solve the following equations in the given intervals.

so

or

is this method correct? thanks!

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- Jul 18th 2009, 09:34 AMTweetyTrig equation, is this correct?Quote:

Solve the following equations in the given intervals.

so

or

is this method correct? thanks! - Jul 18th 2009, 09:49 AMAmer
- Jul 18th 2009, 12:03 PMTweety
- Jul 18th 2009, 12:14 PMe^(i*pi)

You can't factorise when it's like that, you can only factorise when one side is equal to 0

You can use the quadratic equation from there. If it helps let - Jul 18th 2009, 12:14 PMAmer
- Jul 18th 2009, 12:21 PMTweety
- Jul 18th 2009, 01:30 PMskeeter

... ,

... , - Jul 18th 2009, 01:52 PMTweety
- Jul 18th 2009, 01:58 PMHallsofIvy
- Jul 18th 2009, 02:00 PMAmer
- Jul 18th 2009, 02:04 PMpickslides
Difference of 2 squares here is not needed.

Skeeter has used the fact that

and that like what you would do when solving an ordinary quadratic that has 1 as the coeffecient for the term - Jul 18th 2009, 02:17 PMTweety
- Jul 18th 2009, 02:25 PMTweety
- Jul 18th 2009, 02:35 PMskeeter
- Jul 18th 2009, 02:39 PMTweety