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  1. Hace 13 horas · Definition and basic operations Various complex numbers depicted in the complex plane. A complex number is an expression of the form a + bi, where a and b are real numbers, and i is an abstract symbol, the so-called imaginary unit, whose meaning will be explained further below.For example, 2 + 3i is a complex number. For a complex number a + bi, the real number a is called its real part, and ...

  2. Hace 8 horas · Angular Velocity Derivation: The velocity in circular motion is the measure of angular velocity. In other words, the measure of the speed of rotation of an object around an axis is the angular ...

  3. en.wikipedia.org › wiki › Human_eyeHuman eye - Wikipedia

    Hace 13 horas · The human eye is an organ of the sensory nervous system that reacts to visible light and allows the use of visual information for various purposes including seeing things, keeping balance, and maintaining circadian rhythm.. Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device.It is approximately spherical in shape, with its outer layers ...

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