Seudónimo Seudónimo

24-05-2018
Mathematics

contestada

15 Points!

Find the exact value of the real number y.

y = arcsec (1)

A) -π

B) pi divided by two

C) 0

D) π

Respuesta :

24-05-2018

[tex]y=arc\sec x\iff x=\sec y\\\\y=arc\sec1\iff1=\sec y\\\\\to\dfrac{1}{\cos y}=1\to\cos y=1\to y=2k\pi;\ k\in\mathbb{Z}[/tex]
Answer: C) 0

Answer Link

longwoodfade longwoodfade

17-01-2021

Answer:

C) 0

Step-by-step explanation:

Arcsec (1)= cos1

Then look at unit circle cos=1 at 0 or 2pi

Answer Link

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