Question

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Answer 1

Answer:

TeX equation editor that creates graphical equations. Produces code for directly embedding equations into HTML websites, forums or blogs. Images may also be dragged into other applications like Word. You can change the equation background color, text color, transparency, size.

Answer 2

Answer:

Light is a form of electromagnetic radiation with a wavelength which can be detected by the human eye. It is a small part of the electromagnetic spectrum and radiation given off by stars like the sun. ... Light exists in tiny energy packets called photons. Each wave has a wavelength or frequency.