Mathematics, 29.07.2019 15:10, momneedshelphmwk

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

Answers: 1

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Do you know the correct answer?

If
[tex] \cos( \alpha ) = 4 \div 5[/tex]
find
[tex] \cos(1 \div 2) \alpha [/tex]