find the value of cosec (1020)°
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Answered by
0
Answer:
cosec(210°) = cosec(180°+30°)
cosec(180° + theta) = (-cosec theta) , as it lies in the third quadrant.
here theta = 30°.
therefore, cosec(210°)=(-cosec 30°) = (-2)
Answered by
3
Answer:
-2
Step-by-step explanation:
cosec(1020)=cosec(2x360+300)
=cosec(300)
=cosec(270+30)
= -cosec(30)
=-2
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