A Level

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Calculate

\sin(90^\circ - 30^\circ)

. (a)

\dfrac{\sqrt2}{2}

(b)

\dfrac{\sqrt3}{2}

(c)

\dfrac{1}{2}

(d)

\dfrac{1}{\sqrt3}

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