For an acute angle ,

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

For an acute angle

\theta

\cos \theta = \dfrac{12}{13}

. (i) Determine

\sin \theta

. (ii) Compute

\sec \theta

. (iii) Calculate the value of

\dfrac{\sin \theta}{\cos \theta} + \dfrac{\cos \theta}{\sin \theta}