Mathematics
jake2014
2016-04-20 09:48:27
Find the exact value of the real number y. y = arcsec (-1)
ANSWERS
doctor
2016-04-20 12:26:20

Secant is a trigonometric function that quantifies the quotient of hypotenuse and the side that is adjacent to the given angle. This is the reciprocal of the cosine function.                       cosine = adjacent / hypotenuse = x/h                       secant = h / x Secant equal to -1 means that x and h are numerically equal but opposite in sign.                     secant = -1                  cosine = 1/secant =1/-1 = -1                      arccos (-1) = 180° Thus, the answer to this item is 180°. 

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