2sin(-45°)...

Caligo2011 @Caligo2011

July 2022 1 41 Report

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1,5+sin^2 30°-cos^2 30°/2sin(-45°)

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kirichekov

Verified answer

(1,5+sin²30°-cos²30°)/sin(-45°)=(1,5-(cos²30°-sin²30°))/(-sin45°)=(1,5-cos(2*30°))/(-√2/2)=-2*(1,5-cos60°)/√2=-2*(1,5-0,5)/√2=-2√2/(√2*√2)=-√2

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