Identities expressing trig functions in terms of their complements cos t = sin([pic]/2 – t) sin t = cos([pic]/2 – t) cot t = tan([pic]/2 – t) tan t = cot([pic]/2 – t) csc t = sec([pic]/2 – t) sec t = csc([pic]/2 – t) Periodicity of trig functions. Sine‚ cosine‚ secant‚ and cosecant have period 2[pic] while tangent and cotangent have period[pic]. sin (t + 2[pic]) = sin t cos (t + 2[pic]) = cos t tan (t + [pic]) = tan t Identities for negative angles. Sine‚ tangent
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Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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NTC 324 Week 2 Individual Assignment With Lab Challenge https://hwguiders.com/downloads/ntc-324-week-2-individual-assignment-lab-challenge NTC 324 Week 2 Individual Assignment With Lab Challenge NTC 324 Week 2 Individual Assignment Assignment Preparation: Activities include completing the assigned reading‚ independent student reading‚ and research. Choose the best answer for each question in the “Best Answer” at the end of these chapters‚ and write a few sentences for each question to justify
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Experiment: Observations of Chemical and Physical Changes Derrick Davis Lab partner: None Location: My house Date Performed 25 Feb 15; 1600 CHE111-CO2 Photo 1 (Photo of me properly wearing safety goggles holding the student information card) Abstract: In chemistry it is important to understand the difference between physical and chemical changes. The objective of this experiment was to perform tests using heat or chemical mediators and observe the results for any physical or chemical changes
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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To provide an understanding of the concept of friction‚ and To calculate the coefficient of friction of an object by two methods. Materials From: Label or Box/Bag: Student Provides Qty Item Description: 1 1 1 1 1 1 1 From LabPaq Ramp board: 3 - 4 feet long‚ 10 cm wide Can of soft drink or item of similar weight Friction block set-PK Protractor Scale-Spring-500-g Tape measure‚ 1.5-m Tape measure‚ 3-m Discussion and Review Whenever a body slides along another body
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absorptivity (1). Then we can use the value of Ԑ to determine the concentration of [K2Cr2O7]‚ by taking the absorbance ratings and dividing them by Ԑ. Determining the order of reaction for a reactant‚ in this case K2Cr2O7‚ must be done experimentally (2). This is accomplished by making three graphs. One is concentration of reactant‚ [K2Cr2O7]‚ versus time which shows if there is zero order dependence of specific reactant. The second is the natural log of the concentration of a reactant‚ ln[K2Cr2O7]
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between 1 and 6 and the weak bases between 8 and 14. The exact order of weak acids and
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Changes Purpose: To observe some properties of chemical reactions and to associate chemical properties with household products. Procedure: In this experiment I used a 96-well plate to hold each of the chemical reactions that occurred during this lab. Using a pipet‚ I added two drops of one chemical with two drops of another chemical and observed the effects of each reaction. Data Table 1: Experimental Data Well # | Chemicals | Observations | | | Reaction | White paper | Dark paper
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