Question

hi
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1 - cos x = ????​

Answer 1

$\sin( \frac{x}{2} ) = \sqrt{ \frac{1 - \cos(x) }{2} } \\ { \sin( \frac{x}{2} ) }^{2} = \frac{1 - \cos(x) }{2} \\ 1 - \cos(x) = \sin( \frac{ {x}^{2} }{2} )$

here is your answer.............

Answer 2

1 - cos x = 2sin^2x/2

please make me brainlist