Express the following as function of angle less than 45 degree
i. Cosec(-7498)
Answers
Given : Cosec(-7498)
To find : To be expressed as function of angle less than 45 degree
Solution:
Cosec(-7498)
adding subtracting 360 deg does not effect
=> Cosec(-7498) = Cosec (-7498° + 360°*20)
=> Cosec(-7498) = Cosec (-7498° + 7200°)
=> Cosec(-7498) = Cosec (-298°)
=> Cosec(-7498) = Cosec (-298° + 360°)
=> Cosec(-7498) = Cosec (62°)
Cosec x = Sec (90° - x)
=> Cosec(-7498) = Sec(90° - 62°)
=> Cosec(-7498) = Sec(28°)
Sec(28°) = Cosec(-7498)
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Given : Cosec(-7498)
To find : To be expressed as function of angle less than 45 degree
Solution:
Cosec(-7498)
adding subtracting 360 deg does not effect
=> Cosec(-7498) = Cosec (-7498° + 360°*20)
=> Cosec(-7498) = Cosec (-7498° + 7200°)
=> Cosec(-7498) = Cosec (-298°)
=> Cosec(-7498) = Cosec (-298° + 360°)
=> Cosec(-7498) = Cosec (62°)
Cosec x = Sec (90° - x)
=> Cosec(-7498) = Sec(90° - 62°)
=> Cosec(-7498) = Sec(28°)
Sec(28°) = Cosec(-7498)