Quote:

Solve the following equations in the given intervals.

so

or

is this method correct? thanks!

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- July 18th 2009, 10:34 AMTweetyTrig equation, is this correct?Quote:

Solve the following equations in the given intervals.

so

or

is this method correct? thanks! - July 18th 2009, 10:49 AMAmer
- July 18th 2009, 01:03 PMTweety
- July 18th 2009, 01:14 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 - July 18th 2009, 01:14 PMAmer
- July 18th 2009, 01:21 PMTweety
- July 18th 2009, 02:30 PMskeeter

... ,

... , - July 18th 2009, 02:52 PMTweety
- July 18th 2009, 02:58 PMHallsofIvy
- July 18th 2009, 03:00 PMAmer
- July 18th 2009, 03:04 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 - July 18th 2009, 03:17 PMTweety
- July 18th 2009, 03:25 PMTweety
- July 18th 2009, 03:35 PMskeeter
- July 18th 2009, 03:39 PMTweety