第四章:部分分式 Partial Fraction

第六章:角的形成及单位 Angles and Measurements

10.4 三角函数的图像 Graphing of Trigonometric Functions

10.4 Graphing of Trigonometric Functions 三角函数的图像


 

Sketch the graph of the following functions for the given range of x.

在指定的x范围,画出下列各函数的图像

(1) y = sin3x
0^{\circ} \leq x \leq 360^{\circ}
(2) y = 2cosx
-360^{\circ} \leq x \leq 360^{\circ}
(3) y = \frac{1}{2}sin3x
-180^{\circ} \leq x \leq 180^{\circ}
(4) y = cos2x-1
0 \leq x \leq 2\pi
(5) y = | sin2x |
-360^{\circ} \leq x \leq 360^{\circ}
(6) y = 2 - cos x
-2\pi \leq x \leq 2\pi
(7) y = cos (x+\frac{\pi}{4} )
0 \leq x \leq 2\pi
(8) y = sin (x-\frac{\pi}{2} )
0 \leq x \leq 2\pi
(9) y = cos (2x-\frac{\pi}{2} )
0 \leq x \leq 2\pi
(10) y = 2sin (3x+\pi )
0 \leq x \leq 2\pi