If 180°<θ<270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?

asked Mar 1, 2020 152k views

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3 votes

Answer:

$sin(-\theta)=(3)/(4)$

Explanation:

Given:

180°<θ<270° and
$sin(\theta)=-(3)/(4)$

We know for any angle
$\theta$ ,

$sin(-\theta)=-sin(\theta)$

∴
$sin(-\theta)=-(-(3)/(4))=(3)/(4)$

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