Find the values of sin x/2, cos x/2and tan x/2 .if tanx = 5/12
and x lies in the third quadrant.
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tan(x/2) = -5
sin(x/2) = 5/√26
cos(x/2) = -1/√26
sin(x/2) = 5/√26
cos(x/2) = -1/√26
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