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Question
Difficulty Level:

Easy

MCQ

The angle θ1\theta_1 is located in Quadrant IV and cos(θ1)=919\cos (\theta_1)=\frac{9}{19}. What is the value of sin(θ1)\sin ({\theta_1}) ?

Select all that apply :

27019\frac{-2 \sqrt{70}}{19}

27019\frac{2 \sqrt{70}}{19}

±27019 \pm \frac{2 \sqrt{70}}{19}

719\frac{\sqrt{7}}{19}

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