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°

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I) express cos 30 in terms of cos 0.
32. il cos a = 2 (1 in quadranı iv) and sinb = (b in quadr...