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Find the value of

Cosec73degree-(1/cot17degree)

2 answers

csc73 - 1/cot17
= csc73 - tan17
= csc73 - cot73
= (1-cos73)/sin73

But I do not know the exact value. It is not related to any of the special angles we all know and love.

So I guess just get out your calculator and find an approximate value.
@BriBri,
read up on trigonometry.
I hope you already know some algebra ...
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