2017年2学期ZN(112) 2接線のなす角の範囲 | Desmos

f(d)が最大 left parenthesis, StartFraction, 2 Over StartRoot, 3 , EndRoot , EndFraction , StartFraction, 1 Over StartRoot, 3 , EndRoot , EndFraction , right parenthesis

Label:

equals

left parenthesis, 1.1 5 4 7 0 0 5 4 , 0.5 7 7 3 5 0 2 7 , right parenthesis

6

なす角θが最大(30°) left parenthesis, 3 quarters , StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis

Label:

equals

left parenthesis, 0.7 5 , 0.8 6 6 0 2 5 4 , right parenthesis

7

点線は2接線

8

Expression 9: 3 halves StartRoot, "c" , EndRoot left parenthesis, "x" minus StartFraction, 1 Over "c" , EndFraction , right parenthesis plus StartFraction, 1 Over StartRoot, "c" , EndRoot , EndFraction

9

Expression 10: 1 half StartRoot, "c" , EndRoot left parenthesis, "x" minus StartFraction, 1 Over "c" , EndFraction , right parenthesis plus StartFraction, 1 Over StartRoot, "c" , EndRoot , EndFraction

10

交点 left parenthesis, StartFraction, 1 Over "c" , EndFraction , StartFraction, 1 Over StartRoot, "c" , EndRoot , EndFraction , right parenthesis

Label:

equals

left parenthesis, 1.1 6 0 0 9 2 8 1 , 1.0 7 7 0 7 6 0 5 , right parenthesis

11

12

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