About Lesson
(1)
Complete the following table
完成以下的表格
Complete the following table
完成以下的表格
|
sin |
cos |
tan |
cot |
sec |
cosec |
0˚ |
|
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|
30˚ |
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45˚ |
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60˚ |
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90˚ |
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120˚ |
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135˚ |
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150˚ |
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180˚ |
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210˚ |
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225˚ |
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240˚ |
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270˚ |
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300˚ |
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315˚ |
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330˚ |
|
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360˚ |
|
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|
(2)
Find the values of
计算
Find the values of
计算
(a)

(b)

(c) 

(d) 

(e)

ANSWER 答案:
(a) 
(b)
(c)
(d)
(e)

(b)

(c)

(d)

(e)
