Question: Show work please b ) 420 750 22 cm B 13) Use the half-angle formula to find the exact value of a) cos 1050 b)

Show work please b ) 420 750 22 cm B 13)

Show work please

Use the half-angle formula to find the exact value of a) cos

b ) 420 750 22 cm B 13) Use the half-angle formula to find the exact value of a) cos 1050 b) sin - NB: half-angle must be written in radians

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