Question
Question: $\frac{A}{B} = \frac{1}{2\tan^{-1}2}$ A & B ratio is...
BA=2tan−121
A & B ratio is

1:2tan−12
Solution
The question asks for the ratio of A to B, given the equation BA=2tan−121.
From the given equation, the fraction BA is explicitly defined as being equal to 2tan−121. The ratio of A to B is conventionally written as A:B, which is equivalent to the fraction BA.
Therefore, the ratio A:B is directly given by the right-hand side of the equation. BA=2tan−121
This means the ratio of A to B is 1:2tan−12. Since 2tan−12 is an irrational number, this ratio cannot be simplified into a ratio of two integers.
The approach here is to directly interpret the given equation as defining the ratio A:B. Unlike the similar question where specific numbers (4 and 8) were provided for A and B on the left side, here A and B are the variables themselves whose ratio is being sought.