Examlex
Use the discriminant to determine if the graph of the equation, is a parabola, an ellipse or a hyperbola, then use a rotation of axes to eliminate the - term, and sketch the graph.
Lens
In optics, a lens is a transparent device that refracts or bends light rays to focus them, used in glasses, cameras, and various instruments for magnification or correction.
Fovea
A tiny indent in the eye's retina that features the greatest visual sharpness because of a high density of cones.
Retina
The light-sensitive layer of tissue at the back of the inner eye, converting light signals into neural signals for vision.
Basilar Membrane
A structure in the cochlea of the inner ear that plays a key role in the sense of hearing by vibrating in response to sound.
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