Question

寶伊

第四題求解！謝謝！

▲類題6ㄧ
設sin0 = 且為第四象限角,則:
5
(1)cos = ?
答:(1)
-4
3
23 (0)
(2)
565
(2) tan(π + 0) = ?
75
-4
3
(3)sec(x -⑥)= ?
3
(3)—-/ (4) ²/2
4
56
1
(2)
16 - 12/20
= 3₂
1036
1330
180
tan (²+0)
-4
3
4,
(4) cot(π −0) = ?
Los (0-6)
sec (5-0)
11
Cul CT
5
Lot (7-6)
wt

Answer 1

Ny-Ålesund

cot(180-θ) = -cotθ = - 1/tanθ
tanθ = -4/3 --> cot(180-θ) = 3/4