Solution = 29.29 = 2929 / 100

表达式15: "C" Subscript, 2 , Baseline equals "R" sine "B" Subscript, "O" "C" , Baseline

equals

2.4

表达式16: "D" Subscript, 1 , Baseline equals StartFraction, "C" Subscript, 1 , Baseline plus "E" Subscript, 1 , Baseline Over 2 , EndFraction

equals

0.5 5

表达式17: "D" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

表达式18: "m" Subscript, 1 , Baseline equals tangent left parenthesis, 180 plus 2 left parenthesis, 90 minus StartFraction, "B" Subscript, "O" "C" , Baseline Over 2 , EndFraction , right parenthesis , right parenthesis

equals

3.4 2 8 5 7 1 4 2 8 5 7

表达式19: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesis

表达式20: "y" equals negative "C" Subscript, 2 , Baseline

equals

negative 2.4

表达式21: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesis equals negative "C" Subscript, 2 , Baseline

表达式22: "E" Subscript, 1 , Baseline equals StartFraction, "m" Subscript, 1 , Baseline "B" Subscript, 1 , Baseline minus "C" Subscript, 2 , Baseline Over "m" Subscript, 1 , Baseline , EndFraction

equals

1.8

表达式23: "E" Subscript, 2 , Baseline equals negative "C" Subscript, 2 , Baseline

equals

negative 2.4

Graphs

表达式25: "y" less than 25

隐藏标签 "C" , "E"

标签

equals

left parenthesis, negative 0.7 , 2.4 , right parenthesis

left parenthesis, 1.8 , negative 2.4 , right parenthesis

表达式27: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesis

定义域t最小值：

less than or equal to "t" less than or equal to

定义域t最大值： 180

表达式28: polygon left parenthesis, "A" , "C" , "B" , "E" , "B" , right parenthesis

Points

技术支持

X / 2

( 1 )

( 2 )