Question

sec inverse 1 by X is equal to

Answer 1

Answer:

The inverse secant function - arcsec

These inverse functions have the same name but with 'arc' in front. So the inverse of sec is arcsec etc. When we see "arcsec A", we interpret it as "the angle whose secant is A". Means: The angle whose secant is 2.0 is 60 degrees.

Answer 2

Answer:

$sec^{-1}(\frac{1}{x}) = cos^{-1}x$      for all 1/x ∈ R \ (-1,1).

Hope it helps !