the answer is 180 degrees; since cos 180⁰ = -1, then cos-1 -1 = 180⁰
mathematically
cos-1-1
here calculator is required
and you'll get answer 180 degrees.....
All the angles in 4th quadrant have positive cosine and negative sine e.g. 280,290,300,310...etc.
[ cos(Θ) ]-1 = 1/cosine(Θ) = secant(Θ)
No. The inverse of the secant is called the arc-secant. The relation between the secant and the cosecant is similar to the relation between the sine and the cosine - they are somehow related, but they are not inverse functions. The secant is the reciprocal of the cosine (sec x = 1 / cos x). The cosecant is the reciprocal of the sine (cos x = 1 / sin x).
-9; the multiplicative inverse: -1/9
The additive inverse of a number is the negative of that number. Given one number, its additive inverse is the number that needs to be added to it so that the sum is zero. Thus: The additive inverse of 2.5 is -2.5 The additive inverse of -7.998 is 7.998
Inverse of Cosine is 'ArcCos' or Cos^(-1) The reciprocal of Cosine is !/ Cosine = Secant.
The inverse of the cosine is the secant.
The inverse if cosine 0.55 is 0.55
Cosine to the negative first power and cosine cancel each other out because cosine to the negative first power is one over cosine, and one over anything times anything is just one.
udefined
The inverse of the cosine function is arcosine. The domain is −1 ≤ x ≤ 1 since the range of the cosine function is from -1 to 1. The range is from 0 to pi radians or 0 to 180 degrees.
The derivative of negative cosine is positive sine.
An arccosh is the inverse hyperbolic cosine function.
Cosecant, or the inverse of the cosine.
negative 9.
negative one third.
-3