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*ACOS is described as arcCOS and denoted by <math>cos^-1(n)</math>.
*ACOS is described as arcCOS and denoted by <math>cos^-1(n)</math>.
*In ACOS(x), x value should be with in -1 & 1.
*In ACOS(x), x value should be with in -1 & 1.
*To find the angle in degrees, multiply the result angle with 180/PI.
*DEGREES function can also be used.<br/>
For example ACOS(-0.8)*180/PI() or DEGREES(ASIN(-0.8))'' gives -53.13010235415598
== Examples ==
== Examples ==