Use a calculator to approximate each value in decimal degrees.
θ = csc⁻¹ 1.9422833

검증된 단계별 안내

Recall that the cosecant function is the reciprocal of the sine function, so \( \csc \theta = x \) implies \( \sin \theta = \frac{1}{x} \).

Rewrite the given expression \( \theta = \csc^{-1} 1.9422833 \) as \( \theta = \sin^{-1} \left( \frac{1}{1.9422833} \right) \).

Calculate the reciprocal of 1.9422833 to find \( \sin \theta \), which is \( \frac{1}{1.9422833} \).

Use a calculator to find the inverse sine (arcsin) of the value obtained in the previous step, making sure your calculator is set to degree mode.

The result from the calculator will give you the approximate value of \( \theta \) in decimal degrees.

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주요 개념

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Inverse Cosecant Function (csc⁻¹)

The inverse cosecant function, csc⁻¹(x), returns the angle whose cosecant is x. Since cosecant is the reciprocal of sine, csc⁻¹(x) = sin⁻¹(1/x). Understanding this relationship helps convert the problem into a more familiar inverse sine calculation.

Reciprocal Trigonometric Functions

Cosecant is the reciprocal of sine, meaning csc(θ) = 1/sin(θ). This reciprocal relationship is essential for rewriting the inverse cosecant expression in terms of inverse sine, which is commonly available on calculators.

Using a Calculator to Find Angles in Degrees

Calculators typically provide inverse sine functions and allow switching between radians and degrees. To approximate θ in decimal degrees, convert csc⁻¹(x) to sin⁻¹(1/x) and ensure the calculator is set to degree mode before computing the angle.

Use a calculator to approximate each value in decimal degrees.θ = csc⁻¹ 1.9422833