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Find all solutions of the equation 2 c o s x - 1 = 0 . The answer is A + B k and C

Find all solutions of the equation

2 c o s x - 1 = 0 .

The answer is

A + B k

and

C + D k

where

k

is any integer,

] =,

Preview

,, B = [] =,

Preview

, D = [] =,

Preview

,, B = [] =,

Preview

, D = [

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