SOLUTION: I need your help on the following problem:
Find the exact value of sin (-π/3)
Thankyou
Algebra.Com
Question 190622: I need your help on the following problem:
Find the exact value of sin (-π/3)
Thankyou
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Note: since sine is an odd function, this means that . So
In order to evaluate , just evaluate and negate it.
Looking at the unit circle:
We see that at the theta value , the y-coordinate of the point on the unit circle is
So this simply means that
Now negate to get
=====================================
Answer:
So
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