Mathematics, 29.04.2021 22:00 hieth

the angle θ1\theta_1θ1theta, start subscript, 1, end subscript is located in quadrant iii\text{iii}iiistart text, i, i, i, end text, and cos⁡(θ1)=−1315\cos(\theta_1)=-\dfra c{13}{15}cos(θ1)=−1513cosine, left parenthesis, theta, start subscript, 1, end subscript, right parenthesis, equals, minus, start fraction, 13, divided by, 15, end fraction . what is the value of sin⁡(θ1)\sin(\theta_1)sin(θ1)sine, left parenthesis, theta, start subscript, 1, end subscript, right parenthesis

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the angle θ1\theta_1θ1theta, start subscript, 1, end subscript is located in quadrant iii\text{iii}...