Mathematics
Senior High
なぜタンジェントはπまでの範囲なのでしょうか😭😭
(2) 2cos0=-√3から
5
0≦0<2πの範囲では0=
(1)
2|3|
・π
3
-1
よって, 方程式の解は
5
7
0=
=1+2nπ/+2n(nは整数)
6
(2)
y
1
O
-1
√3
2
π
/1x
cos =
(4) 2cos0=1から
/3
2
cos o
-π,
5
0<a<²の範囲では0= π
6
5
よって, 方程式の解は0=
6
Bast
0≤0 <2πの範囲では 0:
1d
==
(3) √√3 tan0 = -15 tan0 = --
√√3
1
2
√3
2
7
π
6
7
π
6 y↑
1
-1
-
5
6
―π
x
+ (nは整数)
T 5-S>0/0 (8)
0=3¹ 3²⁰
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