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Linear equations with multiple x
In this equation the unknown is in the left and right sides. You calculate x from simple exercises that do not require a calculator. Correct use of the status sign is especially important here.
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Square root of a complex number: Exercises
BookWidgets exercises on calculating square roots of complex numbers, to be calculated by solving a system and therefore without a trigonometric form.
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Power of a decimal number: Exercises
BookWidgets exercises on calculating powers of decimal numbers.
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Power of a fraction: Exercises
BookWidgets exercises on calculating powers of fractions.
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Adding vectors: Exercises
BookWidgets exercises on adding vectors in the plane, including using the Chasles-Möbius property.
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Vector coordinate: Exercises
BookWidgets exercises on determining the coordinate of a vector in the plane with respect to an orthonormal coordinate system.
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Multiple of a vector: Exercises
BookWidgets exercises on multiplying a vector in the plane by a number.
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Adding vectors: Exercises
BookWidgets exercises on adding vectors, via the coordinates, in the plane.
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Norm of a vector in the plane: Exercises
BookWidgets exercises on calculating the norm (analytical) of a vector in the plane.
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Scalar product in the plane: Exercises
BookWidgets exercises on calculating the scalar product, or inner product, of 2 vectors in the plane.
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Shifts of elementary functions: Exercises
Book widgets exercises on shifts of elementary functions.
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Convert emojis to pixels
We use a lot of emojis in our messages. Did you know that you can access the emojis with keyboard shortcuts on Windows or Chromebook?
On Windows, type Windows logo key + period or on a Chromebook ctrl+search+space.
This ZIM application allows you to …
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