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3 trig identitiessumdiffsinecosine

This document provides instructions for using the tExpand() command on a TI-Nspire calculator to evaluate trigonometric identities for the addition and subtraction of angles for sine and cosine. It outlines entering the tExpand() command followed by expressions of sin(a+b), cos(a+b), sin(a-b), and cos(a-b) to simplify the trigonometric expressions.

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     www.media4math.com   TI‐Nspire Mini‐Tutorials  Trig Identities: Addition and Subtraction Identities for Sine  and Cosine (CAS)  Summary of Keystrokes Create a calculator window: c61 Use the tExpand() command: b391 mA+B· Repeat with the following expressions: sin(a-b) cos(a+b) cos(a-b)   ©2008 a.m. productions, llc. All rights reserved. 

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3 trig identitiessumdiffsinecosine

  • 1.
         www.media4math.com   TI‐Nspire Mini‐Tutorials  Trig Identities: Addition and Subtraction Identities for Sine  and Cosine (CAS)  Summary of Keystrokes Create a calculator window: c61 Use the tExpand() command: b391 mA+B· Repeat with the following expressions: sin(a-b) cos(a+b) cos(a-b)   ©2008 a.m. productions, llc. All rights reserved.