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Given: Cos (-240')a) Identify quadrant in which angle is located.b) Find reference angle.c) Calculate the exact value.
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Given: Cos (-240')a) Identify quadrant in which angle is located.b) Find reference angle.c) Calculate the exact value.

User Alexei Darmin
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3.2k points

1 Answer

2 votes

Okay, here we have this:

Considering the provided information, we obtain the following:

a)

As,

User Tanvir
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