जर cot Ø = \(b\over a\) तर \(cosØ+sinØ\over {cosØ-sinØ}\)  चे मूल्य काय आहे?

1
(b+a)/(b-a)
2
(a+b/a-b)
3
(b-a)/b+a)
4
(a-b)/(a+b)

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