# PreCalc

posted by
**Sam**
.

I'm not sure how to solve these with calculator.

sec x = -2 , π ≤ x ≤ 3π

sinθ=0.1473, 0°≤θ≤90°

cosθ=0.7563, 0°≤θ≤90°

posted by
**Sam**
.

I'm not sure how to solve these with calculator.

sec x = -2 , π ≤ x ≤ 3π

sinθ=0.1473, 0°≤θ≤90°

cosθ=0.7563, 0°≤θ≤90°