Practicing Success
If cosec θ - cot θ = \(\frac{1}{\sqrt {11 }}\), then value of cosec θ is? |
\(\frac{17}{\sqrt {22 }}\) \(\frac{15}{\sqrt {11 }}\) \(\frac{12}{2\sqrt {11 }}\) \(\frac{12}{\sqrt {11 }}\) |
\(\frac{12}{2\sqrt {11 }}\) |
cosec θ - cot θ = \(\frac{1}{\sqrt {11 }}\) ............(i) then cosec θ + cot θ = \(\sqrt {11}\) adding the equation 2 cosec θ = \(\sqrt {11 }\) + \(\frac{1}{\sqrt {11 }}\) ⇒ 2cosec θ = \(\frac{12}{\sqrt {11 }}\) cosec θ = \(\frac{12}{2\sqrt {11 }}\) |