Question

If 3a = cosec x and 3/a = cot x, find the value of 3(a2 - 1/a2)​

Answer 1

`\csc(x) = (r)/(y) = (3a)/(1) \\ \cot(x) = (x)/(y) = (3)/(a) \\ y = a = 1 \\ \\ 3( {a}^(2) - \frac{1}{{a}^(2) } ) \\ 3( {1}^(2) - \frac{1}{ {1}^(2) } ) \\ = 0`