Question: find cos 2x 5. Given sin x = - and tan x 5. 1 Given sin x = and tan x < 0, find cos2x

find cos 2x

5. 1 Given sin x = and tan x < 0, find

5. Given sin x = - and tan x

5. 1 Given sin x = and tan x < 0, find cos2x . 8

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