導関数，微分係数
y
′
=
−
1
5
e
x
5
cos
3
x
−
3
e
x
5
sin
3
x
(接線の傾き)
JSXGraph v1.2.2 Copyright (C) see https://jsxgraph.org
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
−1
−2
0,0
–
o
+
←
↓
↑
→
x
y
P'
y
=
e
−
1
5
x
cos
3
x
JSXGraph v1.2.2 Copyright (C) see https://jsxgraph.org
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
−1
−2
0,0
–
o
+
←
↓
↑
→
x
y
p = 7.85
P