Trig Cheat Sheet Definition of the Trig Functions Right triangle definition For this definition we assume that p 0 < q < or 0° < q < 90° . 2 Unit circle definition For this definition q is any angle. y ( x‚ y ) hypotenuse opposite y 1 x q x q adjacent sin q = opposite hypotenuse adjacent cos q = hypotenuse opposite tan q = adjacent hypotenuse opposite hypotenuse sec q = adjacent adjacent cot q = opposite csc q = sin q = y =y 1 x cos q = = x 1 y tan q = x 1 y 1 sec q = x x cot q =
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CHEM 101 – General Chemistry I Chapter 2 Reading Assignment Pages 31 - 60 2.1 – What is Matter Made Of? Who 1st discovered atoms – Democritus where the first person to discover atoms. His followers would often think that there were multiple kinds of atoms and not just plain atoms. 2.2 – How Do We Classify Matter? Elements – A substance that consists of identical atoms. Today there are 116 known elements. Example – C= Carbon; H= Hydrogen Compounds – A pure substance made up of two or more elements
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West Bengal University of Technology BF-142‚ Salt Lake City‚ Kolkata-700064 Revised Syllabus of B.Tech in AEIE(To be followed from the academic session‚July 2006 ‚i.e. for the students who were admitted in Academic Session 2005-2006) (All periods will be of at least 50 minutes duration) SEMESTER – III Sl. No. Theory 1 2 3 4 5 6 PRACTICAL 7 8 9 10 Subject Code EE 301(EI) EC 301(EI) M 302 EC 302(EI) EE 302(EI) CS 302 EE 391 EE 392 EC 392 M(CS) 382 Subject Circuit Theory and Networks Discrete Electronic
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equation for demand can be expressed as P = 30 – Q. The equation for supply can be expressed as P = 2Q. Find the equilibrium price and quantity. 2. Demand and supply (B) a) If the demand and supply curves for computers are: D = 100 - 6P‚ S = 28 + 3P where P is the price of computers‚ what is the quantity of computers bought and sold at equilibrium? b) The quantity demanded of Good Z depends upon the price of Z (Pz)‚ monthly income (Y)‚ and the price of a related Good W (Pw). Demand for Good
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5.) a.) b.) Ethyne (C₂H₂) has the shortest C-to-C bond because there is a triple bond between the two C’s. The shorter the bond‚ the smaller the distance between the two bonded atoms‚ a single bond has the largest distance between two bonded atoms. c.) i.) trigonal planar ii.) pyramidal d.) This is not true because the bonds described are intramolecular forces‚ C-H‚ C-O‚ O-H‚ which are not affected by boiling. When boiling occurs‚ added energy overpowers intermolecular forces‚ not
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Michael “Chuck” Jacobs 9/19/2012 ENG 261-ND1 Mrs. Kaylor Sir Arthur Evans and the Palace of King Minos In the early 1900s‚ an archaeologist and scholar by the name of Sir Arthur Evans discovered the Palace of King Minos. After Crete claimed its independence‚ Evans purchased five acres of hilly land‚ which he and his assistants began to excavate. This project kept his attention for about thirty years. In this period of time‚ he and his team made many discoveries that are related to the epic
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OCR B (Salters) AS level Chemistry UNIT 2 – F332 Elements from the sea Halogens and Halides (group 7 chemistry) * Halogen is the elemental molecule‚ eg/ Cl₂‚ Br₂ * Halide is in a compound‚ eg/ KBr‚ KCl | Fluorine | Chlorine | Bromine | Iodine | Appearance at room temp | Pale yellow gas | Green gas | Dark red volatile liquid | Shiny black solid – sublimes to purple gas | Halide | Colour precipitate with silver nitrate | KCl | White | KBr | Cream | KI | Pale Yellow |
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of one electron in an orbital is clockwise‚ what is the spin of the other electron in that orbital? 11. What types of atomic orbitals are in the third principal energy level (n=3)? 12. What is the next atomic orbital in the series 1s‚ 2s‚ 2p‚ 3s‚ 3p? 13. What does the Aufbau principle state? 14. What is the number of electrons in the outermost energy level of an potassium atom? 15. What is the electron configuration of oxygen? 16. If three electrons are available to fill three empty 2p atomic
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Silicon Element Silicon is a chemical element with the symbol Si and atomic number 14 and atomic mass is 28. It is a tetravalent metalloid‚ less reactive than its chemical analog carbon‚ the nonmetal directly above it in the periodic table‚ but more reactive than germanium‚ the metalloid directly below it in the table. Controversy about silicon’s character dates to its discovery; it was first prepared and characterized in pure form in 1823. In 1808‚ it was given the name silicium‚ with an -ium
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