Trigonometry Examples

$\tan (A - B)$

Step 1

Use the difference formula for tangent to simplify the expression. The formula states that $\tan (A - B) = \frac{\tan (A) - \tan (B)}{1 + \tan (A) \tan (B)}$ .

$\frac{\tan (A) - \tan (B)}{1 + \tan (A) \tan (B)}$

Step 2

Remove parentheses.

$\frac{\tan (A) - \tan (B)}{1 + \tan (A) \tan (B)}$