Anna university,CEG,chennai-600025

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Data science is about extracting knowledge and insights from data. It uses a bunch of techniques and tools to analyze, visualize, and interpret data to solve problems and make decisions.

### Summary The provided document is a comprehensive introduction to electrical circuits, specifically focusing on DC (Direct Current) and AC (Alternating Current) circuits. The material begins with the key electrical components—resistors, inductors, capacitors, and power sources—and explores fundamental concepts such as voltage, current, resistance, and power. It covers basic laws governing circuits, including Ohm's Law and Kirchhoff's Laws, which describe the behavior of currents an...

This document is a beginner-friendly guide to MySQL and SQL basics, designed to help you understand how databases work and how to manage them effectively. It covers everything from setting up MySQL to writing queries that create, retrieve, update, and delete data. You'll learn: How databases are structured and why they matter Essential SQL commands to manipulate data How to link tables using joins Ways to enforce rules with constraints (like primary keys and foreign keys)...

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