Without using a calculator, find the exact values of each of the following. a. cos120 b. tan330
Question:
Without using a calculator, find the exact values of each of the following.
a. cos120°
b. tan330°
c. sin225°
d. tan(−300°)
e.
f.
g.
h.
Transcribed Image Text:
sin 4T | 3
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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
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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