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प्रश्न
Answer the following:
State the signs of cosec 520°
उत्तर
We know that cosecant function is periodic with period 2π.
∴ cosec 520° = cosec (360° + 160°)
= cosec 160°
Since 90° < 160° < 180°,
160° lies in the second quadrant.
520° lies in the second quadrant.
Hence, cosec 520° is positive.
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