solve tan 2(A-B)

nothing to solve, you have no equation.

To solve the expression tan 2(A-B), you'll need to apply the trigonometric identity known as the double-angle formula for tangent. The double-angle formula for tangent states that:

tan 2θ = (2 * tan θ) / (1 - tan² θ)

In this case, θ is replaced by (A-B). So, we need to find tan (A-B) and then apply the double-angle formula to obtain tan 2(A-B).

Here are the steps to find tan (A-B):

1. Start by finding the values of tan A and tan B. If you have the values of A and B, you can use a calculator or a trigonometric table to find the tangent values.

2. Once you have the values of tan A and tan B, use the identity tan (A-B) = (tan A - tan B) / (1 + tan A * tan B). Plug in the values of tan A and tan B into this formula to calculate tan (A-B).

3. Once you have the value of tan (A-B), you can then apply the double-angle formula: tan 2(A-B) = (2 * tan (A-B)) / (1 - tan²(A-B)).

Remember to use parentheses correctly in your calculations to ensure the order of operations is followed correctly.

By following these steps, you can find the value of tan 2(A-B).