Without using a calculator, find the exact values of each of the following. a. cos120 b. tan330

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Without using a calculator, find the exact values of each of the following.
a. cos120°

b. tan330°

c. sin225°

d. tan(−300°)

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:37 AM

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Without using a calculator, find the exact values of each of the following. a. cos120 b. tan330

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sin 4T | 3

Step by Step Answer:

a cos120 We can use the identity cos180 theta cos theta to find the cosine of 120 cos120 cos180 60 cos60 We know that cos60 12 so cos120 12 b tan330 W...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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