Calcule tanx cuando la expresión \( 5\left(\sqrt{3} \cos 7^{\circ}-\operatorname{sen} 7^{\circ}\right) \cos x+15 \operatorname{sen} x \) toma su máximo valor.

The angle of elevation of the Sun is \( 33.1^{\circ} \) at the instant the shadow cast by a monument is 720 feet long. Use this information to calculate the height of the monument. The height of the monument is \( \square \mathrm{ft} \). (Round to two decimal places as needed.)

A funicular carries passengers up an embankment to an observation point. If the length of the track is 67.8 meters and the angle of inclination is \( 39^{\circ} 4^{\prime} \), determine the height of the embankment. The embankment is \( \square \) meters high. (Round to two decimal places as needed.)

th Sketching the Graph of a Trigonometric Function hs In Exercises 15-38, sketch the graph of the function. (Include two full periods.) \( \begin{array}{ll}\text { 15. } y=\frac{1}{3} \tan x & \text { 16. } y=\tan 4 x \\ \text { 17. } y=-2 \tan 3 x & \text { 18. } y=-3 \tan \pi x \\ \text { 19. } y=-\frac{1}{2} \sec x & \text { 20. } y=\frac{1}{4} \sec x \\ \text { 21. } y=\csc \pi x & \text { 22. } y=3 \csc 4 x\end{array} \)

-pi/3 on the unit circle

- Convertir \( 45.3245^{\circ} \) a grados minutos y segundos