I keep having problem with simplification problems...

My problem is:

The answer given is: but I cannot reach this answer.

My attempt is...

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- March 17th 2013, 05:48 PMvaironxxrdAdding and simplifying trigonometric expression
I keep having problem with simplification problems...

My problem is:

The answer given is: but I cannot reach this answer.

My attempt is...

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=

=

=

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- March 17th 2013, 06:01 PMzhandeleRe: Adding and simplifying trigonometric expression
You're very close. Just keep going a little further. See the pdf.

- March 17th 2013, 06:12 PMvaironxxrdRe: Adding and simplifying trigonometric expression
- March 17th 2013, 06:17 PMzhandeleRe: Adding and simplifying trigonometric expression
Your work was quite accurate. Maybe you just got tired near the end. Don't worry about it, it'll be easier next time.