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Mathematics, 29.07.2019 15:10 momneedshelphmwk

If
 \cos( \alpha ) = 4 \div 5
find
 \cos(1 \div 2) \alpha
 \sin(2 \alpha )
 \tan(1 \div 2) \alpha

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Answers: 1

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You know the right answer?
If
[tex] \cos( \alpha ) = 4 \div 5[/tex]
find
[tex] \cos(1 \div 2) \alpha [/tex]
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