ruma51 ruma51
  • 18-06-2018
  • Mathematics
contestada

Evaluate: sec(5pi/4)

Respuesta :

CrystalJewel
CrystalJewel CrystalJewel
  • 18-06-2018
if you see your unit circle 
our coordinates for 5pi/4 are  ( - rad 2 / 2 , - rad 2 /2)

sec is 1/cos 

do some algebra 
1/ - rad2/2  
once you solve your final answer is - rad2 
Answer Link
jessieschmidt01 jessieschmidt01
  • 07-04-2022

Answer:

-\sqrt(2)

Step-by-step explanation:

Answer Link

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