tex]...

vladskiba6 @vladskiba6

November 2021 1 10 Report

[tex] {4 \cos }^{2}45 - 6 \sin30[/tex]

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Verified answer

$4Cos^{2}45^{0}-6Sin30^{0}=4*(\frac{1}{\sqrt{2}})^{2}-6*\frac{1}{2}=4*\frac{1}{2}-3=2-3=\boxed{-1}$

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