Verify the Identity:

Question

sec(x/2)=the square root of (2 tanx/(tanx sinx))

Answer 1

cannot be verified since it is not true.
All we need is one example where it does NOT work

e.g. let x = 60
LS = sec (30) = 1.1547

RS = √(2(1.7321)/((1.7321)(.5))
= √4 = 2

LS ≠ RS, so no identity