Clinician definition, a physician or other qualified person who is involved in the treatment and observation of living patients, as distinguished from one engaged in research. See more. Dictionary.com
In geometry, the foci (/ËfoÊsaÉª/ ; singular focus) are a pair of special points with reference to which any of a variety of curves is constructed. For example, foci can be used in defining conic sections, the four types of which are the circle, ellipse, parabola, and hyperbola. In addition, foci are used to define the Cassini oval and the Cartesian oval.
Trigonometry can often find a missing side or angle in a triangle. The special functions Sine, Cosine and Tangent help us! They are simply one side of a right-angled triangle divided by another. For any angle Î¸: (Sine, Cosine and Tangent are often abbreviated to sin, cos and tan.)