cathysuggs16 cathysuggs16

01-03-2017
Mathematics

contestada

cos(x/3)cos(x/3)=1/2(1+cos(2x/3))

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LammettHash LammettHash

01-03-2017

This follows from the half-angle identity for cosine.

[tex]\cos^2\theta=\dfrac{1+\cos2\theta}2[/tex]

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Himanichawla Himanichawla

27-09-2019

Answer:

it's true, don't have a step by step explanation just did it on my test.

Step-by-step explanation:

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