Prove each of these identities. a. cosx tanx sinx b. c. d. e. f. cos 4
Question:
Prove each of these identities.
a. cosx tanx ≡ sinx
b.
c.
d.
e.
f. cos4 x + sin2 x cos2 x ≡ cos2 x
Transcribed Image Text:
1- cos²x sin x cos x = tan x
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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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