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Mathematics, 08.09.2021 16:20 alyea231

How to write cos^2 A/2 in
cos A formula=b^2+c^2-a^2/2bc
please help me please help me​


How to write cos^2 A/2 in cos A formula=b^2+c^2-a^2/2bcplease help me please help me​

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How to write cos^2 A/2 in
cos A formula=b^2+c^2-a^2/2bc
please help me please help me​
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