anonymous
  • anonymous
sin(-150°) = -sin30° true or false?
Algebra
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Correct
anonymous
  • anonymous
Flase
anonymous
  • anonymous
False*

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anonymous
  • anonymous
The identity \( \sin(-\theta) = -\sin(\theta) \)
anonymous
  • anonymous
is that how you determine?
anonymous
  • anonymous
Dude plug it into a calculator
anonymous
  • anonymous
its not an identity its simply asking if they equal each other and even if it was an identity it still would be false
Vocaloid
  • Vocaloid
aren't they both equal to -1/2?
anonymous
  • anonymous
No
anonymous
  • anonymous
Here http://www.sosmath.com/trig/Trig5/trig5/trig5.html The answer is True
anonymous
  • anonymous
And it is an identity
anonymous
  • anonymous
\[\sin (-150)=.714 -\sin (30)=.9\]
anonymous
  • anonymous
Its False
Vocaloid
  • Vocaloid
Nixy is correct.
anonymous
  • anonymous
it is in radian
anonymous
  • anonymous
I mean to degrees
Vocaloid
  • Vocaloid
The question is asking for degrees...
anonymous
  • anonymous
We are working with degrees
anonymous
  • anonymous
I am correct. It is an even odd identity and it is True.
Vocaloid
  • Vocaloid
|dw:1434557221966:dw| confirm
anonymous
  • anonymous
Thank you everyone
anonymous
  • anonymous
YW

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