Answer
The tangent and cotangent of complementary angles are equal.
Work Step by Step
1. Set up calculator in degrees
$\tan15^{\circ}\approx0.2679$
$\cot75^{\circ}\approx0.2679$
2. Pick up more examples
$\tan10^{\circ}=cot80^{\circ}\approx0.1763$
$\tan53^{\circ}=cot37^{\circ}\approx1.327$
