Posted by help! on Saturday, September 19, 2009 at 9:24am.
When I come across an unusual trig identity to prove, the first thing I do is try some arbitrary angle.
Since it is an Identity it should be true for any angle
e.g. Y = 30º
LS = sec30(1+tan30) = appr. 1.821
RS = 6csc30 = 12
No wonder you can't prove it, it is not true !
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