表达式20: "r" equals StartFraction, left parenthesis, negative "a" plus StartRoot, 5 , EndRoot , right parenthesis Over 2 , EndFractionr=−a+52
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
2 pi2π
定义域\theta最大值：
equals=
negative 3.1 1 6 9 6 6 0 1 1 2 5−3.11696601125
20
表达式21: "r" equals StartFraction, left parenthesis, negative "a" plus StartRoot, 5 plus "a" , EndRoot , right parenthesis Over 2 , EndFractionr=−a+5+a2
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
2 pi2π
定义域\theta最大值：
equals=
negative 2.3 9 9 9 2 5 0 6 9 6 5−2.39992506965
21
表达式22: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 32 , EndFractionr=−aθ+5+aθ32
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
22
表达式23: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 32 , EndFractionr=−aθ+532
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
23
表达式24: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 32 , EndFractionr=aθ+5+aθ32
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
24
表达式25: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 32 , EndFractionr=aθ+532
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
25
表达式26:
26
表达式27: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 16 , EndFractionr=−aθ+5+aθ16
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
27
表达式28: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 16 , EndFractionr=−aθ+516
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
28
表达式29: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 16 , EndFractionr=aθ+5+aθ16
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
29
表达式30: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 16 , EndFractionr=aθ+516
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
30
表达式31:
31
表达式32: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 8 , EndFractionr=−aθ+5+aθ8
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
32
表达式33: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 8 , EndFractionr=−aθ+58
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
33
表达式34: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 8 , EndFractionr=aθ+5+aθ8
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
34
表达式35: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 8 , EndFractionr=aθ+58
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
35
表达式36:
36
表达式37: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 4 , EndFractionr=−aθ+5+aθ4
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
37
表达式38: "r" equals StartFraction, left parenthesis, negative "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 4 , EndFractionr=−aθ+54
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
38
表达式39: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 plus "a" Superscript, theta , Baseline , EndRoot , right parenthesis Over 4 , EndFractionr=aθ+5+aθ4
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
12 pi12π
定义域\theta最大值：
39
表达式40: "r" equals StartFraction, left parenthesis, "a" Superscript, theta , Baseline plus StartRoot, 5 , EndRoot , right parenthesis Over 4 , EndFractionr=aθ+54
00
定义域\theta最小值：
less than or equal to theta less than or equal to≤θ≤
