#### Answer

Reciprocals: tangent, cosine and sine functions

#### Work Step by Step

1. Cotangent is the reciprocal of tangent
$\frac{1}{\cot \theta} = \tan \theta$
2. Secant is the reciprocal of cosine
$\frac{1}{\sec \theta} =\cos \theta$
3. Cosecant is the reciprocal of sine
$\frac{1}{\csc\theta} = \sin \theta$