ಒಂದು ವೇಳೆ cosec θ - cot θ = a ಆಗಿದ್ದರೆ, ನಂತರ cosec θ ನ ಮೌಲ್ಯ ಏನು?
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
\(\frac{1}{4}\left( {a - \frac{1}{a}} \right)\)