Mark M. answered • 08/05/19
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Cos(-3π/4) = -1/√2
So, the exact value of sec(-3π/4) = 1 / cos(-3π/4) = -√2
Kai S.
asked • 08/05/19What is the exact value of the sec (–3π/4)?
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2 Answers By Expert Tutors
This is the same as 1/cos(-3pi/4) = -1.414
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