91Ó°ÊÓ

In Exercises \(29-46,\) graph the functions over the indicated intervals. $$y=\csc \left(\frac{1}{2} x\right),-2 \pi \leq x \leq 2 \pi$$

Use the unit circle and the fact that sine is an odd function and cosine is an even function to find the exact values of the indicated functions. $$\csc \left(-\frac{5 \pi}{6}\right)$$

In Exercises \(21-32,\) graph the given function over one period. $$y=-3 \sin \left(\frac{\pi}{4} x\right)$$

In Exercises \(29-46,\) graph the functions over the indicated intervals. $$y=-\csc (2 \pi x),-1=x \leq 1$$

In Exercises \(29-46,\) graph the functions over the indicated intervals. $$y=-\sec (2 \pi x),-1 \leq x \leq 1$$

In Exercises \(21-32,\) graph the given function over one period. $$y=-4 \sin \left(\frac{\pi}{2} x\right)$$

Use the unit circle and the fact that sine is an odd function and cosine is an even function to find the exact values of the indicated functions. $$\sec \left(-\frac{7 \pi}{4}\right)$$

Use the unit circle and the fact that sine is an odd function and cosine is an even function to find the exact values of the indicated functions. $$\tan \left(-\frac{11 \pi}{6}\right)$$

In Exercises \(29-46,\) graph the functions over the indicated intervals. $$y=\frac{1}{3} \sec \left(\frac{\pi}{2} x\right),-4 \leq x \leq 4$$

In Exercises \(33-40,\) graph the given function over the interval \([-2 p, 2 p],\) where \(p\) is the period of the function. $$y=-4 \cos \left(\frac{1}{2} x\right)$$