The solution to the problem is as follows:
<span>cos2A - cos4A = -2 sin(6A/2).sin(-2A/2) = +2 sin(3A).sinA
and
sin4A - sin2A = 2 cos(6A/2).sin(2A/2) = 2 cos(3A).sinA
Hence RHS = (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) = sin 3A / cos 3A = tan 3A = LHS
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In question in and 2 it is just asking for X and 3 and 4 is just the order might be wrong depending on what your doing in math but it should be right.
5/6 divided by 7/10 is 1/4/21 which is 1.19047619 in decimal.
No. If the cinnamon twists were purchased they would exceed $14.50.
