Posted by **Anon** on Friday, December 31, 2010 at 12:14am.

tan45+sin60=(sin30+cos30)

1+ć3/2=(1/2+ć3/2)

How do i work it from her?

- Trigonometry -
**drwls**, Friday, December 31, 2010 at 7:14am
What you have written is an invalid equation. If you are trying to prove an identity, it can't be done.

Since sin60 = cos30 = (sqrt3)/2 ,

you are basically trying to prove that

1 = 1/2, which is never true

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