Mathematics 0580 · IGCSE · Trigonometric functions

Trigonometric functions — practice question

(main)[2]

$x^\circ$ is an obtuse angle, and $\sin x^\circ = 0.43$. Find $x$.

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This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$154.5$ or $154.5\ldots$” …

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