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compute Sin(330)

 

 

thx!

 Feb 24, 2021
 #1
avatar+30677 
+1

this is equal to sin (-30) =   - 1/2  

 Feb 24, 2021
 #2
avatar+266 
+1

\(Sin(330)\)

 

\(=\cos \left(90^{\circ \:}-330^{\circ \:}\right)\)

 

\(=\cos \left(-240^{\circ \:}\right)\)

 

\(=\cos \left(240^{\circ \:}\right)\)

 

\(=-\frac{1}{2}\)

 

cheekycheekycheeky

.
 Feb 25, 2021

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