Examples of Math Problems: Find two values of θ, 0 ≤ θ < 2π, that satisfy the given trigonometric equation. sec θ = −2

Sunday, August 11, 2013

Find two values of θ, 0 ≤ θ < 2π, that satisfy the given trigonometric equation. sec θ = −2

sec%28theta%29=-2

means

cos%28theta%29=-1%2F2

on our interval
x=%282%2Api%29%2F3

x=%282%2Api%29%2F3

or

x=%284%2Api%29%2F3

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