Prove that Cosec(2/7) + cosec (3/7)=cosec (/7)

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7 cosec α - 3 cos α = 7

7 cot α - 3 cosec α = 3.

7 cosec θ - 3 cot θ = 7

7 cot θ - 3 cosec θ

cot θ = \frac{3}{4}

\sqrt{\frac{sec θ - cosec θ}{sec θ + cosec θ}} = \frac{1}{\sqrt{7}}

c o s e c \frac{360^{o}}{7} + c o s e c \frac{540^{o}}{7} =

2 s i n^{2} \frac{π}{6} + c o s e c^{2} \frac{7 π}{6} c o s^{2} \frac{π}{3} = \frac{3}{2}

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