91Ó°ÊÓ

If \(P\) is the point at which the terminal side of an angle in standard position intersects the unit circle, what are the largest and smallest values of the coordinates of \(P ?\) Justify your answer.

Is an angle of \(810^{\circ}\) a quadrantal angle? Explain why or why not.

In \(3-10,\) the terminal side of \(\angle R O P\) in standard position intersects the unit circle at \(P .\) If \(\mathrm{m} \angle R O P\) is \(\theta,\) find: a. \(\sin \theta\) b. \(\cos \theta\) c.tan \(\theta\) d. \(\sec \theta\) e. \(\csc \theta\) f. \(\cot \theta\) $$ P(0.6,0.8) $$

In \(3-38,\) find each function value to four decimal places. $$ \sin 28^{\circ} $$

In \(3-7,\) draw each angle in standard position. $$ 540^{\circ} $$

The lengths of the sides of \(\triangle A B C\) are given. For each triangle, \(\angle C\) is the right angle and \(\mathrm{m} \angle A<\mathrm{m} \angle B .\) Find: a. \(\sin A\) b. \(\cos A\) c. \(\tan A\). \(5,12,13\)

In \(3-44,\) find the exact value. $$ \tan 30^{\circ} $$

In \(3-7,\) draw each angle in standard position. $$ 110^{\circ} $$

In \(3-38,\) find each function value to four decimal places. $$ \tan 200^{\circ} $$

In \(3-44,\) find the exact value. $$ \cos 60^{\circ} $$