kaykaylorflyle1 kaykaylorflyle1

27-05-2017
Mathematics

contestada

Simplify the square root of (1-cos theta)(1+cos theta)

Respuesta :

ghanami ghanami

31-05-2017

hello :
(1-cos(θ))(1+cos(θ)) = 1-cos²((θ)
but : cos²(θ) +sin²(θ) = 1
1- cos²(θ) = sin²(θ)
(1-cos(θ))(1+cos(θ)) = 1-cos²((θ) = sin²(θ)

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