Stitz-Zeager_College_Algebra_e-book

# Using the law of sines we get sin sin30 so sin

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Unformatted text preview: f the identity for tan(2t). For now, we exclude x = ±1 from our answer. 728 Foundations of Trigonometry (d) x = arccos(0.117) + 2kπ or x = 2π − arccos(0.117) + 2kπ In [0, 2π ), x ≈ 1.4535, 4.8297 (e) x = arcsin(0.008) + 2kπ or x = π − arcsin(0.008) + 2kπ In [0, 2π ), x ≈ 0.0080, 3.1336 359 359 (f) x = arccos + 2kπ or x = 2π − arccos + 2kπ 360 360 In [0, 2π ), x ≈ 0.0746, 6.2086 (g) x = arctan(117) + kπ In [0, 2π ), x ≈ 1.5622, 4.7038 (h) x = arccot(−12) + kπ In [0, 2π ), x ≈ 3.0585, 6.2000 2 2 (i) x = arccos + 2kπ or x = 2π − arccos + 2kπ 3 3 In [0, 2π ), x ≈ 0.8411, 5.4422 17 17 + 2kπ or x = 2π − arcsin + 2kπ (j) x = π + arcsin 90 90 In [0, 2π ), x ≈ 3.3316, 6.0932 √ (k) x = arctan − 10 + kπ In [0, 2π ), x ≈ 1.8771, 5.0187 3 3 (l) x = arcsin + 2kπ or x = π − arcsin + 2kπ 8 8 In [0, 2π ), x ≈ 0.3844, 2.7572 7 7 (m) x = π − arccos + 2kπ or x = π + arccos + 2kπ 16 16 In [0, 2π ), x ≈ 2.0236, 4.2596 (n) x = arctan(0.03) + kπ In [0, 2π ),...
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