Find the value of cosec ( -1410 degree)
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Answered by
179
cosec(-1410°)
=-cosec1410°
=-cosec{(90°×16)+30°}
=-cosec30°
=-2
[∵, {(90°×16)+30°} is in the 1st quadrant (all) so there will be no negative sign.
As 16 is a even number thus cosec will not be changed also.]
=-cosec1410°
=-cosec{(90°×16)+30°}
=-cosec30°
=-2
[∵, {(90°×16)+30°} is in the 1st quadrant (all) so there will be no negative sign.
As 16 is a even number thus cosec will not be changed also.]
Answered by
103
Answer:
Step-by-step explanation:
GIVEN- COSEC(-1410)
=-COSEC1410
=-cosec(15*90+60)
=-cosec60
=-(-sec60)
=sec60
=2
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