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ECAT Mathematics

Chapter 13: Inverse Trigonometric Functions

87 Questions 90 Minutes Pass: 60%+ ECAT Prep
0 sin⁻¹x is defined for x in:
1 Range of sin⁻¹x:
2 cos⁻¹x is defined for x in:
3 Range of cos⁻¹x:
4 tan⁻¹x is defined for x in:
5 Range of tan⁻¹x:
6 sin(sin⁻¹x) for x∈[−1,1] =
7 sin⁻¹(sinx) = x for x in:
8 cos(cos⁻¹x) =
9 tan(tan⁻¹x) =
10 sin⁻¹(1/2) =
11 cos⁻¹(1/2) =
12 tan⁻¹(1) =
13 sin⁻¹(0) =
14 cos⁻¹(0) =
15 tan⁻¹(0) =
16 sin⁻¹(−1/2) =
17 cos⁻¹(−1/2) =
18 tan⁻¹(−1) =
19 sin⁻¹x+cos⁻¹x = ? for x∈[−1,1]
20 tan⁻¹x+cot⁻¹x = ?
21 sin⁻¹(−x) =
22 cos⁻¹(−x) =
23 tan⁻¹(−x) =
24 sin⁻¹(1) =
25 cos⁻¹(1) =
26 sin⁻¹(−1) =
27 cos⁻¹(−1) =
28 sin⁻¹(√3/2) =
29 cos⁻¹(√3/2) =
30 tan⁻¹(√3) =
31 tan⁻¹(1/√3) =
32 sin(cos⁻¹(3/5)) (right triangle with hyp 5, adj 3, opp 4):
33 cos(sin⁻¹(5/13)) (adj=12):
34 tan(sin⁻¹(x)) =
35 tan(cos⁻¹(x)) =
36 sin(2sin⁻¹(x)) =
37 cos(2sin⁻¹(x)) =
38 tan⁻¹(1)+tan⁻¹(2)+tan⁻¹(3) =
39 2tan⁻¹(x) =
40 sin⁻¹x+sin⁻¹y = sin⁻¹(x√(1−y²)+y√(1−x²)) when:
41 The function arcsin is:
42 The function arccos is:
43 The function arctan is:
44 lim_{x→∞} tan⁻¹x =
45 lim_{x→−∞} tan⁻¹x =
46 cot⁻¹x range:
47 sec⁻¹x domain (one convention):
48 csc⁻¹x domain:
49 sin⁻¹(sin(7π/6)) =
50 cos⁻¹(cos(5π/4)) =
51 The principal value of sin⁻¹ lies in:
52 sin⁻¹x can also be written as:
53 If sin⁻¹x=π/3, then x=
54 If cos⁻¹x=2π/3, then x=
55 The derivative of sin⁻¹x is:
56 The derivative of tan⁻¹x is:
57 tan⁻¹(1/2)+tan⁻¹(1/3) =
58 sin⁻¹(3/5)+sin⁻¹(4/5) =
59 cos(tan⁻¹(x)) =
60 sin(tan⁻¹(x)) =
61 Graph of y=sin⁻¹x passes through:
62 Graph of y=cos⁻¹x passes through:
63 sin⁻¹(cos(π/3)) =
64 cos⁻¹(sin(π/6)) =
65 2sin⁻¹(1/2) =
66 The equation sin⁻¹x=cos⁻¹x is true for x=
67 3sin⁻¹x = sin⁻¹(3x−4x³) is valid for:
68 3cos⁻¹x = cos⁻¹(4x³−3x) is valid for:
69 tan⁻¹x+tan⁻¹y = tan⁻¹((x+y)/(1−xy)) when:
70 When xy>1 (and x,y>0): tan⁻¹x+tan⁻¹y =
71 The equation sin(sin⁻¹x+cos⁻¹x) = sin(π/2) =
72 cot⁻¹(x) = tan⁻¹(1/x) for:
73 Principal value of cot⁻¹(−√3):
74 sin⁻¹(2/3)+sin⁻¹(√5/3) = ? (Check: (2/3)²+(√5/3)²=4/9+5/9=1)
75 4tan⁻¹(1/5)−tan⁻¹(1/239) = ?
76 The function y=sin⁻¹x is:
77 The function y=cos⁻¹x is:
78 The function y=tan⁻¹x is:
79 sin⁻¹x+sin⁻¹(−x) =
80 cos⁻¹x+cos⁻¹(−x) =
81 sin(cos⁻¹(1/2)) =
82 cos(sin⁻¹(1/2)) =
83 sin⁻¹(√2/2) =
84 cos⁻¹(√2/2) =
85 sin⁻¹(sin(4π/3)) =
86 The domain restriction for sin⁻¹ is needed because:
0 / 87 answered