Value of cos x/2. Need answer fast
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tan x =3/4
cos x=4/5
sin x=3/5
we know that
1+cosx =2cos x/2
or, 1+4/5 = 2 cos x/2
cos x/2 =9/10
cos x=4/5
sin x=3/5
we know that
1+cosx =2cos x/2
or, 1+4/5 = 2 cos x/2
cos x/2 =9/10
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