f(x1)+f(x2)+…+f(xn) |
n |
x1+x2+x3+…+xn |
n |
π |
2 |
A+B+C |
3 |
π |
3 |
3 |
2 |
3 |
2 |
A.1025 | B.1035 | C.1045 | D.1055 |
|
x2 |
a2 |
y2 |
b2 |
1 |
r1 |
1 |
r2 |
b2 |
a-ccosθ |
b2 |
a-ccos(π-θ) |
b2 |
a+ccosθ |
1 |
r |
1 |
r |
2a |
b2 |
x2 |
a2 |
y2 |
b2 |
111…1 |
16个1 |
A.217-2 | B.216-2 | C.216-1 | D.215-1 |
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