Mathematics Question and Solution
Let a be 1 unit.
(1/sin9) = (b/sin36)
b = 3.75738972957 units.
(AB)² = 3.75738972957²+1-2*3.75738972957cos135
AB = 4.52014702134 units.
(4.52014702134/sin135) = (f/sin18)
f = 1.97537668119 units.
(4.52014702134/sin135) = (e/sin27)
e = 2.90211303259 units.
Observing the proof.
Notice;
a = 1 unit.
b = 3.75738972957 units.
e = 2.90211303259 units.
f = 1.97537668119 units.
It implies;
(e/a)-(b/f) = 1
(2.90211303259/1)-(3.75738972957/1.97537668119) = ?
2.90211303259-1.90211303259 = 1
Proved.
