evaluate-the-given-expression-coscos112cosleftcos-1left-frac12rightrightcoscos12

Question

Evaluate the given expression:

$\cos\left(\cos^{-1}\left(-\frac12\right)\right)$

Accepted Answer

﻿<math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo>−</mo><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">-\frac12</annotation></semantics></math>−21​﻿

Answer

﻿<math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac12</annotation></semantics></math>21​﻿

Answer

﻿<math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>0</mn></mrow><annotation encoding="application/x-tex">0</annotation></semantics></math>0﻿

Answer

﻿<math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>1</mn></mrow><annotation encoding="application/x-tex">1</annotation></semantics></math>1﻿

Evaluate the given expression:cos(cos−1(−12))\cos\left(\cos^{-1}\left(-\frac12\right)\right)cos(cos−1(−21))

Evaluate the given expression:
$\cos\left(\cos^{-1}\left(-\frac12\right)\right)$