Mathematics
Senior High
Solved
±はどうやって消してますか??
(2)
π
点Bを表す複素数をβ とすると,∠AOB=
OA = 20B より
"
"
6
B
1/2(2+√3)(複号同順)
{008 (土)
= {cos(±) + sin(+)}-(2+ √31)
√3.1
2
2
(
+
√√3
=/1(土)(2+v)
√3+5i 3√3+1
±
)
4
4
となる。
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