Mathematics
Mathematics, 31.08.2019 01:50, jontonbon

Given:
cos(2x)=-1/9
angle x is in quadrant i.
find:
cos(x)

answer
Answers: 1

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Do you know the correct answer?
Given:
cos(2x)=-1/9
angle x is in quadrant i.
find:
cos(x)...

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