A={{4,1,-1},{2,5,2},{1,1,1}};[matrix akare]
Eigenvalues[A]
Eigenvectors[A]
Null
(s+i)
CharacteristicPolynomial[A,x]
(s+i)
27IdentityMatrix[3]-30MatrixPower[A,1]+10MatrixPower[A,2]-MatrixPower[A,3]//MatrixForm
(s+i)
b-----number
f[x_]=(x^3+2x^2+15x+2)*Sin[Pi*x];
f[0]
(s+i)
f[1]
s+i
FindRoot[f^1[c]==0,{c,0.5}]
s+i
gpt updated
f[x_] = (x^3 + 2x^2 + 15x + 2)*Sin[Pi*x];
f[0]
f[1]
FindRoot[D[f[c],c]==0,{c,0.5}]