運算式 13: left parenthesis, cos "a" , 0 , right parenthesiscosa,0
13
Sine
對學生隱藏此資料夾。
14
運算式 15: "y" equals sine "a" left brace, 0 less than or equal to "x" less than or equal to cos "a" , right bracey=sina0≤x≤cosa
15
運算式 16: "y" equals sine "a" left brace, cos "a" less than or equal to "x" less than or equal to 0 , right bracey=sinacosa≤x≤0
16
運算式 17: "x" equals 0 left brace, 0 less than or equal to "y" less than or equal to sin "a" , right bracex=00≤y≤sina
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運算式 18: "x" equals 0 left brace, sin "a" less than or equal to "y" less than or equal to 0 , right bracex=0sina≤y≤0
18
運算式 19: left parenthesis, 0 , sin "a" , right parenthesis0,sina
19
Tangent
對學生隱藏此資料夾。
20
運算式 21: tangent "a"tana
21
運算式 22: "y" left brace, 0 less than or equal to "y" less than or equal to sin "a" , right brace equals StartFraction, negative 1 Over tan "a" , EndFraction left parenthesis, "x" minus cos "a" , right parenthesis plus sine "a"y0≤y≤sina=−1tanax−cosa+sina
22
運算式 23: "y" left brace, sin "a" less than or equal to "y" less than or equal to 0 , right brace equals StartFraction, negative 1 Over tan "a" , EndFraction left parenthesis, "x" minus cos "a" , right parenthesis plus sine "a"ysina≤y≤0=−1tanax−cosa+sina
