Homework Help: trig

Posted by stellar on Friday, September 30, 2011 at 12:46pm.

Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.)

cos θ = 1/7

trig - Steve, Friday, September 30, 2011 at 12:56pm
cosine is positive in QI and QIV
Find θ such that cos θ = 1/7

It is the only angle between 0° and 180° whichc has such a positive cosine value.
trig - Anonymous, Monday, November 14, 2011 at 1:17am
N

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