X = PQ = 15

運算式 14: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "P" Subscript, 1 , Baseline , right parenthesis equals StartRoot, "R" squared minus "x" squared , EndRoot

運算式 15: left parenthesis, "m" Subscript, 1 , Baseline "x" minus "m" Subscript, 1 , Baseline "P" Subscript, 1 , Baseline , right parenthesis squared equals "R" squared minus "x" squared

運算式 16: "m" squared "x" squared plus "m" squared "P" squared minus 2 "m" squared "x" "P" Subscript, 1 , Baseline equals "R" squared minus "x" squared

運算式 17: left parenthesis, "m" squared plus 1 , right parenthesis "x" squared minus 2 "m" squared "P" Subscript, 1 , Baseline "x" plus "m" squared "P" squared minus "R" squared equals 0

運算式 18: "a" equals "m" squared plus 1

equals

運算式 19: "b" equals negative 2 "m" squared "P" Subscript, 1 , Baseline

equals

negative 42

運算式 20: "c" equals "m" squared "P" squared minus "R" squared

equals

negative 22

運算式 21: "Q" Subscript, 1 , Baseline equals StartFraction, negative "b" minus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction

equals

negative 0.5

運算式 22: "Q" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline left parenthesis, "Q" Subscript, 1 , Baseline minus "P" Subscript, 1 , Baseline , right parenthesis

equals

12.9 9 0 3 8 1 0 5 6 8

Graphs

運算式 24: "y" less than 25

運算式 25: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesis

定義域 t 最小值：

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

定義域 t 最大值： 180

運算式 26: polygon left parenthesis, "A" , "P" , "Q" , "P" , "B" , right parenthesis

Points

技術支援