irlalanis7 irlalanis7

02-05-2018
Mathematics

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HELP!! been at this for an hour :(

solve (cos Θ − cos Θ)2 + (cos Θ + cos Θ)2

a. sin2 Θ
b. 4cos2 Θ
c. 8
d. cos2 Θ

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Аноним Аноним

02-05-2018

Ill write x instead of the symbol in the question

The first part of the expression = 0 so we have:-

0 + (2 cos x)^2
= 4 cos^2 x

Its b

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