MathDB

16

Part of 1985 AMC 12/AHSME

Problems(1)

Finding the Tangents of Angles

Source:

3/3/2009
If A \equal{} 20^{\circ} and B \equal{} 25^{\circ}, then the value of (1 \plus{} \tan A)(1 \plus{} \tan B) is (A) \sqrt3 \qquad (B)\ 2 \qquad (C)\ 1 \plus{} \sqrt2 \qquad (D)\ 2(\tan A \plus{} \tan B) <spanclass=′latex−bold′>(E)</span>  none of these <span class='latex-bold'>(E)</span>\ \text{ none of these}
trigonometry