SubArea: Sine, cosine, tangent and cotangentLevel: BProject ID: 1003076606Accepted: 1Clonable: 0Easy: 1The graph of the function g(x)=cosx is identical with the graph of the function:g(x)=cos(−x)g(x)=sin(−x)g(x)=−cosxg(x)=−sinx