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SQL for Beginners
CourseLearn essential SQL operations with SELECT, INSERT, UPDATE, and DELETE queries in this focused course. Explore views, master Postgres features, and optimize with indexes. Gain practical skills for real-world database management.
Free
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Types of Chemical Reactions (Practice Test)
Digital downloadThis comprehensive resource includes answers & explanations, covering synthesis, decomposition, single & double replacement, precipitation, neutralization, combustion, & redox reactions, as well as predicting the outcome of reactions.
$9
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Pre-order available now!
Number Theory
CourseExplore the properties of integers, divisibility, prime numbers, GCD, LCM, modular arithmetic, and fundamental theorems. Uncover the basics of congruences, quadratic residues, and arithmetic functions in this introductory course.
Free
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Isomorphism Example Between Two Groups
Digital downloadIn this 2-page handout we discuss an isomorphism between the real numbers under addition〈R, +〉, and the positive real numbers under multiplication〈R+, ·〉. This is a great example to deepen your understanding of isomorphisms.
Free
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Atoms, Elements, and Isotopes (Practice Test)
Digital downloadDive into the fundamental concepts of atomic theory with this comprehensive 50-question practice test, featuring detailed answers and explanations. Topics include various models of the atom, its structure, and the unique identity of elements.
$9
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Gas Laws - Chemistry Practice Test
Digital downloadMaster gas law concepts with our 50-question practice test, featuring answers and explanations. Covering Boyle's, Charles's, Gay-Lussac's, Avogadro's, and the Ideal Gas Laws, this test helps you excel in understanding gas behaviors and calculations.
$9