Practicing Success
If cosec θ - cot θ = \(\frac{1}{\sqrt {7 }}\), then value of cosec θ is? |
\(\frac{4}{\sqrt {3 }}\) \(\frac{4}{\sqrt {7 }}\) 1 0 |
\(\frac{4}{\sqrt {7 }}\) |
cosec θ - cot θ = \(\frac{1}{\sqrt {7 }}\) ............(i) then cosec θ + cot θ = \(\sqrt {7}\) adding the equation 2 cosec θ = \(\sqrt {7 }\) + \(\frac{1}{\sqrt {7 }}\) ⇒ 2cosec θ = \(\frac{8}{\sqrt {7 }}\) or cosec θ = \(\frac{4}{\sqrt {7 }}\) |