SOLUTION: Estimate θ if
cos θ = −0.4
and 0 ≤ θ < 2π. (Enter your answers as a comma-separated list. Round your answers to one decimal place.)
Algebra ->
Trigonometry-basics
-> SOLUTION: Estimate θ if
cos θ = −0.4
and 0 ≤ θ < 2π. (Enter your answers as a comma-separated list. Round your answers to one decimal place.)
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You can put this solution on YOUR website! Use your calculator acos or cos^(-1) function.
Remember there are two solutions in that range, use symmetry.
