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Question

Difficulty Level:

Easy

MCQ

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

Select all that apply :

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

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

$\pm \frac{2 \sqrt{70}}{19}$

$\frac{\sqrt{7}}{19}$

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