Question

if 0 ≤ x ≤2π, find sin x/2 , cos x/2 and tan x/2, when:

1) tanx = -4/3, x in quadrant 2
2) Cosx = -1/3, x lies in quadrant 3
3) sinx = -1/2, x lies in quadrant 4​

Answer 1

Answer:

tab = 4/3 , x in quadrant 2 it's answer

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