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A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = ?1.
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Java is a general-purpose programming language that is class-based, object-oriented,
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The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori around the year 1700
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Chess is a two-player strategy board game played on a checkered board with 64 squares arranged in an 8×8 grid.
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A look at the fossil record to see if it supports the idea that humanity evolved from a chimp like ancestor.
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Read Music Note Attack is an intuitive visual method to read music fast with memory. For Guitar, ukulele, piano, violin.
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A guide to the science behind sports: for coaches, teachers and all sports fans
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