An angle measures radians

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

An angle

\theta

measures

\dfrac{11\pi}{3}

radians. Determine

\cos \theta

. (a)

\dfrac{\sqrt{3}}{2}

(b)

-\dfrac{1}{2}

(c)

\dfrac{1}{2}

(d)

-\dfrac{\sqrt{3}}{2}

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