Posted by **Phil-- HELP NEEDED ASAP** on Friday, May 10, 2013 at 9:46am.

Find the exact value of the expression without a calculator:

sin(3π/4+5π/6)

I've done:

sin(9π/12 + 10π/12)

=sin(19π/12)

What do I do now? Im confused if that would just be the answer or what? Wouldnt the answer be numerical?

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