I) express cos 30 in terms of cos 0.
32. il cos a = 2 (1 in quadranı iv) and sinb = (b in quadr...
Mathematics, 30.11.2019 16:31 Leftie500
I) express cos 30 in terms of cos 0.
32. il cos a = 2 (1 in quadranı iv) and sinb = (b in quadrant ii )find,
(i) sin(a - b)
(iii) cos(a+b)
23. find the exact value of by using the sum or difference formulas;
i) sin 105 degrees
(ii) cos 225°
Answers: 2
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The angle of elevation from point a to the top of the cliff is 38 degrees. if point a is 80 feet from the base of the cliff , how high is the cliff ?
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