1+1

BaseForm[2,2]

PrimePi[2]

Sin[3]

sin[3]

(Sqrt[2])

(Sqrt[2.])

46.*(Sqrt[2])

N[(Sqrt[2])]

N[(Sqrt[2]),50]

N[(Sqrt[3])]

Solve

(Sqrt[\[Placeholder]])

(2^3)

(a/(b
((a+b)/(c+d
))))

∫(E^x)*Sin[x]*Cos[x]*x\[DifferentialD]x

fel=3

fel

Clear[fel]

Clear[Sin]

I=5

∫(E^x)*Sin[x]*Cos[x]*x\[DifferentialD]x

Plot[(1/50) (E^x) ((4-10 x) Cos[2 x]+(3+5 x) Sin[2 x]),{x,-18.42477796076938`,18.42477796076938`}]

A=5;
B=2;

Solve[A*x+B==10,x]

A=5;
B=N[2];

Solve[A*x+B==10,x]

(((a+b)*(c+9d))/(3*(2+(1+x*(3+1)))))

{A,B}

TreeForm[{1,3,2,4,5,{2,5,4,8}}]

Solve[{2*x+y==2,3*x-6==y},{x,y}]

Solve[{2*x+y==2,3*x-6==y},{x,y}]

Clear[x]
Solve[x==2,x]

DSolve[{(1+(x^2))*y''[x]+x*y'[x]+y[x]==0,y[0]==3,y'[0]==2},y[x],x]

DSolve[{(1+(x^2))y''[x]+x*y'[x]+y[x]==0,y[0]==3,y'[0]==2},y,x]

2 3

10vez

vez10=25

vez10

N[Pi]
N[E]
N[Log[3]]

cosfi=0.4;

fi=ArcCos[cosfi];
Sin[fi]

N[(Sqrt[2])]

(Sqrt[2])//N

N@(Sqrt[2])