Practicing Success
If $\sin A=\frac{1}{2}, A$ is an acute angle, then find the value of $\frac{\tan A-\cot A}{\sqrt{3}(1+{cosec} A)}$. |
$\frac{4 \sqrt{3}}{9}$ $\frac{2}{9}$ $-\frac{2}{9}$ $-\frac{4 \sqrt{3}}{9}$ |
$-\frac{2}{9}$ |
We are given that :- sinA = \(\frac{1}{2}\) { we know , sin 30º = \(\frac{1}{2}\) } So, A = 30º Now, \(\frac{tanA - cotA}{ √3 ( 1 + cosecA ) }\) = \(\frac{tan 30º - cot 30º}{ √3 ( 1 + cosec 30º ) }\) = \(\frac{ 1/ √3 - √3}{ √3 ( 1 + 2 ) }\) = \(\frac{ -2/ √3}{ 3√3 }\) = \(\frac{ -2}{ 9 }\) |