Solve: 
A. Let 
where 
⇒ 
According to question
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.
4. Inverse Trigonometric Functions
1
1
1
1
1
1
2
2
3
3
3
3
4
5
1
2
3
4
4
4
4
5
5
5
5
1
1
1
1
2
2
3
3
3
1
1
1
1
2
2
3
3
1
1
1
1
1
2
3
3
3
3
1
1
1
1
2
3
3
3
3
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
1
1
1
1
1
1
1
1
1
2
2
2
2
3
4
1
1
1
2
2
2
3
1
1
1
1
1
2
3
4
5
6
7
8
9
10
1
1
1
2
3
3
3
3
3
3
3
3
3
3
4
1
2
2
2
3
3
1
2
3
4
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
4
4
5
6
7
7
8
8
8
8
8
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Report submitted
Thank you — our team will review your report shortly.