cosec θ - cot θ = a అయితే, cosec θ విలువ:

1
\(\left( {a + \frac{1}{a}} \right)\)
2
\(\frac{1}{2}\left( {a + \frac{1}{a}} \right)\)
3
\(\frac{1}{2}\left( {a - \frac{1}{a}} \right)\)
4
\(\frac{1}{4}\left( {a - \frac{1}{a}} \right)\)

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