Discussion
Considering radian, value of sin 1.9 is
Answer: C
Convert the radian measure to degrees.
\[ 1.9 \text{ rad} = 1.9 \times 57.2958 = 108.86^{\circ} \]
\[ \sin 108.86^{\circ} = \sin(180^{\circ} - 108.86^{\circ}) = \sin 71.14^{\circ} = 0.946 \]
The angle is in the second quadrant, where the sine is positive and still close to its maximum - so a value near 1 is expected.
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