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Andre45 [30]
4 years ago
11

Given: cos(2x)=-1/9 Angle x is in quadrant I. Find: cos(x)

Mathematics
1 answer:
sergey [27]4 years ago
5 0
My opinion about this answer is 7
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GEOMETRY HELP PLEASE
MissTica

An outside angle is equal to the sun of the two opposite inside angles.

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vesna_86 [32]
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3 years ago
How do you solve this
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