Prove each of these identities. a. sin x/ tan x = cos x b. cos x sin
Question:
Prove each of these identities.
a. sin x/ tan x = cos x
b. cos x sin x/ tan x = 1 – sin2 x
c. 1 – sin2 x/cos x = cos x
d.
e. (sin x + cos x)2 = 1 + 2 sin x cos x
f. tan2 x – sin2 x = tan2 x sin2 x
Transcribed Image Text:
cos' x – sin? x cos? a + sin x = COS x Cos x + sin x
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ANSWER a sin x tan x cos x Using the identity tan x sin x cos x we can rewrite the lefthand side of the equation as sin x sin x cos x cos x Simplifying the lefthand side by canceling out the sin x ter...View the full answer
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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