–𝜋2≤θ≤𝜋2. Find the value of θ in radians.sin(θ)=–12Write your answer in simplified, rationalized form. Do not round.θ=
Question
–𝜋2≤θ≤𝜋2. Find the value of θ in radians.sin(θ)=–12Write your answer in simplified, rationalized form. Do not round.θ=
Solution
The given range for θ is -π/2 ≤ θ ≤ π/2. This range is in the fourth and first quadrants of the unit circle.
The sine function is negative in the fourth quadrant.
The reference angle for sin(θ) = 1/2 is θ = π/6 or 30 degrees.
However, since the sine function is negative, we are looking for the angle in the fourth quadrant.
In the fourth quadrant, the angle with a reference angle of π/6 is -π/6.
So, θ = -π/6.
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