another trigo equ general solution

p213 q11

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- Mar 20th 2008, 01:40 AMafeasfaerw23231233another trigo equ general solution
another trigo equ general solution

p213 q11 - Mar 20th 2008, 03:02 AMmr fantastic
Your answers and the books answers are equivalent, but I much prefer your answers! Observe:

Book answers:

These answers can be re-grouped as:

The first group is given in general by and the second group is given by , where n is an integer. These are your answers.

Which is best? It doesn't matter! (But I like yours). - Mar 20th 2008, 03:31 AMmr fantastic
With regards to method 2, you use the fact that or .

So yields:

, one of the answers given in the book,

or

. You can confirm that this is equivalent to , the other answer given in the book.

Method 2 looks like the method the book has used. But I don't know why they decided to use the general solution rather than ....