If and , then…

MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

If

0^{\circ}<\theta<90^{\circ}

and

\cos \theta = \sin 28^{\circ}

, then

\theta

equals (a)

28^{\circ}

(b)

68^{\circ}

(c)

62^{\circ}

(d)

118^{\circ}

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